F E = Electric field q T (+ test charge)
|
|
- Hubert Singleton
- 5 years ago
- Views:
Transcription
1 Summary Page week 1 charges opposite attract like repel F = k Q Q r T + Cancelation/screening 1 Coulombs Law vector sum of forces Superposition Principle solution (A+B)= solution (A)+ solution (B) F E = Electric field q T (+ test charge) q E Field Lines E Field behavior in/atsurfaceof metals surf E A = q inside ε o Gausses' Law k = 1 4 o 10
2 11
3 micro coulomb 11a
4 Examples F= force on q 1 (due to q ) F= force on q (due to q 1 ) q 1 q 6 C +4 C F= F by Newton s 3 rd Law (and later, Coulomb s Law) F= force on q 1 (due to q ) q 1 q +6 C +4 C F= force on q (due to q 1 ) Note: forces along straight line between charges 11b
5 Where does charge come from? 1
6 point charges Electrostatic force F = k q 1 Coulomb s Law q q q 1 q q = r 4 r Nm k =8.99 (10) C 1 C ε =8.85 (10) Nm 0 Force depends on magnitude of both charges (q 1 q like m 1 m in Newton s Gravity) Force decreases with distance like 1/r (again like Newton s Gravity) Force acts along straight line between point charges (again like Newton s Gravity) Force very big bigger than Gravity 13
7 Note: 1e 1.6 (10) 19 C or 1C 6.3 (10) 18 e Consider the He nucleus: p+ n r About 1015 m p+ n What is the repulsion force between protons? k q 8.99 (10) [1.6 (10) ] F = = 15 r (10 ) 9 19 F ~ 30 N repulsive Nm C [ ][ ] C m Strong nuclear force (see end of sem.) balances this repulsion. 14
8 Example Forces and directions on Q 1 &Q F= kq Q r F 1 r = 1m F Q 1 = 6(10) 6 C Q = +4(10) 6 C 6 μc +4 μc = 1 = 16(10) 3 N in magnitude (10) 6(10) 4(10) l Nm C CC m F 1 =F on1 due to = +.16N (attractive = toward other charge) F =F on due to 1 =.16N (attractive = toward other [1] charge) Force reaction force pair NEWTON s 3 rd LAW + signs come from + definition + def. 14a
9 14b
10 Net force superposition of forces due to individual charges 15
11 Example: 3 colinear charges Consider force on Q Consider total force F on Q + direction def. 16 to right 16
12 Electric Field = Force per unit charge Define E F E = q 0 or F = 0 q E 17
13 Electric field of one point charge magnitude! Direction = direction of force on + test charge! on straight line between points Group of point charges: add electric fields of point charges like vectors!! 18
14 Example: E at point, P, between point charges E= 3000 m q 1 + q 3 C test 4 C charge 9 3 E 1 =8.99 (10) (3000) 3 =8.99 (10) 3 3 E 1 =3(10) N/C m P + dir Nm C N = C m C E = E + E = [ E + E ] xˆ 1 1 xˆ 4 E =8.99 (10) (000) 9 4 = 8.99 (10) 3 E =8.99(10) N / C 3 q k r 3 E = E1 + E = [ ] (10) x ˆ N/ C 3 E = 5.99 (10) x N/C ˆ last slide 9/6/17 lec 18a
15 Vector addition of E fields: use symmetry to simplify when possible Q. Electric field at center cancel E q k r +q q cancel + r (place + test charge at center) q +q = q s the same r s the same E s the same E fields cancel so E tot =0 r a/ r a a/ a a = + homework problem help 19
16 Vector addition of E fields: symmetry continued Q. Electric field at center +q +q + r homework problem help E q = k r r a/ r a a/ 45 o a a = + q q E x E y cancel E x q 45 o o q E Ey y = k sin(45 )=k similarly superimpose E y r q s the same r s the same E s the same 1 r E 4 E tot = y 1 E (y) ˆ y 1 45 o 45 o y direction 19.1
17 E Field Lines direction = force direction on + test charge (away from +) (toward ) line density field magnitude repulsive attractive 110
18 Static (no charge motion) condition 111
19
20 minimize force (energy) 5 E concentrate at sharp points (low radius of curvature) 111. for later flat plane Electric field constant Electric field surface!!!! would cause motion (violates static) E
21 E concentrate at sharp points (low radius of curvature) can move apart decrease density can t move apart (surf. contains) enough E can actually rip charges from surface
22 Faraday Bucket can accumulate charge!! (e) (f) (g) 111.4
23 Van de Graff generator continuous charge accumulation!! + pulled off belt + charge left on rubber belt sharp points big electric field charge on rubber belt drained static charge induced on inside of rubber belt sharp points big electric field charge transferred metal pulley plastic pulley 111.5
24 Electric Flux 111.6
25 Gauss s Law E = Q inside o surf Q E A inside = ε = o E 111.7
26 11
27 Surface charge density & E field for metal Q= tot. surface charge E Electric field surface!!!! Electric field constant air metal A =surface area = Q A units C/m Q. What is relation between E and? 113
28 Electric field above charged metal surface (pill box shape) Gassian surface Q= tot. surface charge Gauss = tot = tot Q sides top E air in ε0 A top ε 0 113a bottom metal = + + tot through surface A top E is top = E A top top top bottom sides 0 E=0 in metal A tot =surface area = Atop = E A top ε E = 0 Q A Q = A units C/m 0 E=0 in metal E side in air ε 0
29 Consider // plates connected to charge reservoirs. 1. The E field, by symmetry, must run straight across the gap.. Apply Gauss's Law 3. Metal Plates 114
30 115abc
31 115d summary
32 116
33 117extra Brute force electric force vector addition
34 117.1extra
Chapter 21. Electric Fields
Chapter 21 Electric Fields The Origin of Electricity The electrical nature of matter is inherent in the atoms of all substances. An atom consists of a small relatively massive nucleus that contains particles
More informationElectrostatics. Electrical properties generated by static charges. Introduction
Electrostatics Electrical properties generated by static charges Introduction First Greek discovery Found that amber, when rubbed, became electrified and attracted pieces of straw or feathers Introduction
More informationChapter 15. Electric Forces and Electric Fields
Chapter 15 Electric Forces and Electric Fields First Observations Greeks Observed electric and magnetic phenomena as early as 700 BC Found that amber, when rubbed, became electrified and attracted pieces
More informationChapter 16. Properties of Electric Charge. Electric Charge. The Milikan Experiment. Properties of Electric Charge, continued
Properties of Electric Charge Electric Charge There are two kinds of electric charge. like charges repel unlike charges attract Electric charge is conserved. Positively charged particles are called protons.
More informationChapter 17 & 18. Electric Field and Electric Potential
Chapter 17 & 18 Electric Field and Electric Potential Electric Field Maxwell developed an approach to discussing fields An electric field is said to exist in the region of space around a charged object
More informationQuiz. Chapter 15. Electrical Field. Quiz. Electric Field. Electric Field, cont. 8/29/2011. q r. Electric Forces and Electric Fields
Chapter 15 Electric Forces and Electric Fields uiz Four point charges, each of the same magnitude, with varying signs as specified, are arranged at the corners of a square as shown. Which of the arrows
More informationChapter 18 Electrostatics Electric Forces and Fields
Chapter 18 Electrostatics Electric Forces and Fields Electrical charges that does not flow through an object, but sit stationary on the surface of an object. Usually it is isolated on the surface, but
More informationChapter 19 Electric Charges, Forces, and Fields
Chapter 19 Electric Charges, Forces, and Fields 1 Overview of Chapter 19 Electric Charge! Insulators and Conductors! Coulomb s Law! The Electric Field! Electric Field Lines! Shielding and Charging by Induction
More informationElectric Flux and Gauss Law
Electric Flux and Gauss Law Gauss Law can be used to find the electric field of complex charge distribution. Easier than treating it as a collection of point charge and using superposition To use Gauss
More informationWelcome. to Electrostatics
Welcome to Electrostatics Outline 1. Coulomb s Law 2. The Electric Field - Examples 3. Gauss Law - Examples 4. Conductors in Electric Field Coulomb s Law Coulomb s law quantifies the magnitude of the electrostatic
More informationChapter 15. Electric Forces and Electric Fields
Chapter 15 Electric Forces and Electric Fields First Studies Greeks Observed electric and magnetic phenomena as early as 700 BC Found that amber, when rubbed, became electrified and attracted pieces of
More informationElectric Charge and Electric Field AP Physics 4 Lecture Notes
Electric Charge and Electric Field AP Physics 4 Lecture Notes Coulomb s Law The Electric Field Field Lines Electric Fields and Conductors Coulomb s law: Coulomb s Law Force (N) F F F k r F F F r Charge
More informationq C e C k (Equation 18.1) for the distance r, we obtain k (Equation 18.1), where Homework#1 3. REASONING
Homework# 3. REASONING a. Since the objects are metallic and identical, the charges on each combine and produce a net charge that is shared equally by each object. Thus, each object ends up with one-fourth
More information- Like charges repel Induced Charge. or by induction. Electric charge is conserved
Course website: http://course.physastro.iastate.edu/phys112/ Here you will find the syllabus, lecture notes and other course information Links to the website are also on Blackboard: Phys 112 (Spring 2017)
More informationChapter Electric Forces and Electric Fields. Prof. Armen Kocharian
Chapter 25-26 Electric Forces and Electric Fields Prof. Armen Kocharian First Observations Greeks Observed electric and magnetic phenomena as early as 700 BC Found that amber, when rubbed, became electrified
More informationChapters 21 and 22: Giancoli, 4 th Edition Electrostatics
Chapters 21 and 22: Giancoli, 4 th Edition Electrostatics Electric Charges Coulomb s Law and Electric force The Electric Field Electric Field Lines Electric flux Gauss Law and applications of Gauss Law
More informationHOMEWORK 1 SOLUTIONS
HOMEWORK 1 SOLUTIONS CHAPTER 18 3. REASONING AND SOLUTION The total charge to be removed is 5.0 µc. The number of electrons corresponding to this charge is N = ( 5.0 10 6 C)/( 1.60 10 19 C) = 3.1 10 13
More informationElectric Field Intensity
Electric Field Intensity Every charged object creates an electric field of force in the space around it. Any other charged object in that space will experience a force of attraction or repulsion from the
More informationHW Chapter 16 Q 6,8,10,18,19,21 P 1,2,3,4. Chapter 16. Part 1: Electric Forces and Electric Fields. Dr. Armen Kocharian
HW Chapter 16 Q 6,8,10,18,19,21 P 1,2,3,4 Chapter 16 Part 1: Electric Forces and Electric Fields Dr. Armen Kocharian First Observations Greeks Observed electric and magnetic phenomena as early as 700 BC
More informationChapter 16. Properties of Electric Charge. electric charge is + or -. like charges repel unlike charges attract
Section 1 Electric Charge Properties of Electric Charge electric charge is + or -. like charges repel unlike charges attract Electric charge is conserved. Atomic Charges Protons (+)charged particles. neutronsuncharged
More informationElectric Force and Electric Field
Electric Force and Electric Field Electrostatics Sources Outcomes Maxwell s Equation Stationary Charge Electric Force Gauss s Law Electric Field Electric Potential Capacitors Electric Forces and Electric
More informationPhysics Notes Chapter 17 Electric Forces and Fields
Physics Notes Chapter 17 Electric Forces and Fields I. Basic rules and ideas related to electricity a. electricity is about charges or charged objects where they are and how they move electrostatics is
More informationPhysics 212 Exam I Sample Question Bank 2008 Multiple Choice: choose the best answer "none of the above" may can be a valid answer
Multiple Choice: choose the best answer "none of the above" may can be a valid answer The (attempted) demonstration in class with the pith balls and a variety of materials indicated that () there are two
More informationElectric Forces. For a field force, they do not need to touch and force can exist at large separation distances. Gravity is an example.
Physics for Scientists and Engineers Foundations and Connections Advance Edition Volume 1st Edition Katz SOLUTIONS MANUAL Full clear download (no formatting errors) at: https://testbankreal.com/download/physics-scientists-engineersfoundations-connections-advance-edition-volume--1st-edition-katzsolutions-manual/
More informationElectrostatics and Electric Potential - Outline
Electrostatics and Electric Potential - Outline 1. Understand the basic properties of electric charge, including conservation of charge and that charges are quantized. 2. Differentiate between conductors
More informationGeneral Physics (PHY 2140)
General Physics (PHY 2140) Introduction Syllabus and teaching strategy Electricity and Magnetism Properties of electric charges Insulators and conductors Coulomb s law Lecture 1. Chapter 15 1 Lecturer:
More informationPhysics Electrostatics Problems. Science and Mathematics Education Research Group
F FA ACULTY C U L T Y OF O F EDUCATION E D U C A T I O N Department of Curriculum and Pedagogy Physics Electrostatics Problems Science and Mathematics Education Research Group Supported by UBC Teaching
More informationMarch 11. Physics 272. Spring Prof. Philip von Doetinchem
Physics 272 March 11 Spring 2014 http://www.phys.hawaii.edu/~philipvd/pvd_14_spring_272_uhm.html Prof. Philip von Doetinchem philipvd@hawaii.edu Phys272 - Spring 14 - von Doetinchem - 32 Summary Magnetic
More informationELECTRIC FORCES AND ELECTRIC FIELDS
CHATER 18 ELECTRIC FORCES AND ELECTRIC FIELDS CONCETUAL QUESTIONS 1. REASONING AND SOLUTION In Figure 18.9, the grounding wire is removed first, followed by the rod, and the sphere is left with a positive
More informationChapter 1 The Electric Force
Chapter 1 The Electric Force 1. Properties of the Electric Charges 1- There are two kinds of the electric charges in the nature, which are positive and negative charges. - The charges of opposite sign
More informationChapter 23. Electric Fields
Chapter 23 Electric Fields Electric Charges There are two kinds of electric charges Called positive and negative Negative charges are the type possessed by electrons Positive charges are the type possessed
More informationChapter 16 Electric Charge and Electric Field
Chapter 16 Electric Charge and Electric Field Units of Chapter 16 Static Electricity; Electric Charge and Its Conservation Electric Charge in the Atom Insulators and Conductors Induced Charge; the Electroscope
More information20.3 Coulomb's Law 20.4 The Concept of the Electric Field.notebook March 05, 2018
Section 20.3 Coulomb s Law Text: p. 642 Coulomb s Law Coulomb s law describes the force between two charged particles. Coulomb s Law Coulomb s law looks much like Newton s gravity except the charge q can
More information(1) (2) (1) doubling charge q 1, only
Coulomb s Law Class: Name: Date: 1. As the distance between two point charges is tripled, the electrostatic force between the charges (1) decreases to one-ninth the original force decreases to one-third
More informationMTE1 results. Mean 75% = 90/120
MTE1 results Mean 75% = 90/120 Scores available at Learn@UW, your TAs have exams If your score is an F or a D, talk to us and your TAs for suggestions on how to improve From last times Electric charges
More information= C. on q 1 to the left. Using Coulomb s law, on q 2 to the right, and the charge q 2 exerts a force F 2 on 1 ( )
Phsics Solutions to Chapter 5 5.. Model: Use the charge model. Solve: (a) In the process of charging b rubbing, electrons are removed from one material and transferred to the other because the are relativel
More information4 r 2. r 2. Solved Problems
CHAP. 24] COULOMB'S LAW AND ELECTRIC FIELDS 233 AN ELECTRIC FIELD is said to exist at any point in space when a test charge, placed at that point, experiences an electrical force. The direction of the
More informationGeneral Physics II Spring Electric Forces and Fields
General Physics II Spring 2008 Electric Forces and Fields 1 Coulomb s Law 2 The direction of the electric force is always along the line joining the two charges. Charges of the same sign repel; charges
More information1. ELECTRIC CHARGES AND FIELDS
1. ELECTRIC CHARGES AND FIELDS 1. What are point charges? One mark questions with answers A: Charges whose sizes are very small compared to the distance between them are called point charges 2. The net
More information(b) The two pithballs have opposite electric charges positive for the first ball and negative for the second so they attract each other.
PHY 309 L. Solutions for Problem set # 1. Question Q.4 at the end of chapter 12: (a) When a piece of glass is rubbed with a nylon cloth, some electrons move from the glass to the nylon. Since the electrons
More informationChapter 18 Electric Force and Electric Fields. Sections
Chapter 18 Electric Force and Electric Fields Sections 18.1 18.6 Objectives: After finishing this unit, you should be able to: Explain and demonstrate the First law of electrostatics and discuss charging
More informationElectric Charges & Electric Forces Chapter 20 Structure of atom
Electric Charges & Electric Forces Chapter 20 Electric Charges & Electric Forces Chapter 20 Structure of atom Mass (kg) Charge (Coulombs) Proton 1.673X10-27 +1.60X10-19 Neutron 1.675X10-27 0 = + e Electron
More informationPES 1120 Spring 2014, Spendier Lecture 2/Page 1
PES 110 Spring 014, Spendier Lecture /Page 1 Lecture today: Chapter 1 1) Van de Graaff generator ) Coulombs Law 3) HW 0 given out Last time: Charge comes in two distinct forms: - positive charge (+, i.e
More informationPhysics 9 Spring 2011 Homework 1 - Solutions Wednesday January 19, 2011
Physics 9 Spring 011 Homework 1 - s Wednesday January 19, 011 Make sure your name is on your homework, and please box your final answer. Because we will be giving partial credit, be sure to attempt all
More informationPHYS102 - Gauss s Law.
PHYS102 - Gauss s Law. Dr. Suess February 2, 2007 PRS Questions 2 Question #1.............................................................................. 2 Answer to Question #1......................................................................
More informationELECTROSTATICS 3. P.Ravindran, PHY041: Electricity & Magnetism 15 January 2013: Electrostatics 3
ELECTROSTATICS 3 q 0 Electro negativity ti it Rl Relative electro negativity ranking for some common materials from electron donating materials (+, glass) to electron accepting materials (, teflon) + +
More informationChapter 21 Electric Charge and Electric Field
Chapter 21 Electric Charge and Electric Field 21-1 Static Electricity; Electric Charge and Its Conservation Objects can be charged by rubbing 21-1 Static Electricity; Electric Charge and Its Conservation
More informationPreview of Period 5: Forces and Newton s Laws
Preview of Period 5: Forces and Newton s Laws 5.1 The Fundamental Forces of Nature What are the four fundamental forces of nature? How do we see their effects? 5.2 Forces and Newton s Laws What causes
More informationElectric Potential Energy & Electric Potential
Electric Potential Energy & Electric Potential Consider the following scenario. F E F E pt.a If we release the ve charge from pt.a The ELECTRIC FIELD produced by the ve charge pulls the ve charge to the
More informationFall 2004 Physics 3 Tu-Th Section
Fall 2004 Physics 3 Tu-Th Section Claudio Campagnari Lecture 9: 21 Oct. 2004 Web page: http://hep.ucsb.edu/people/claudio/ph3-04/ 1 Last time: Gauss's Law To formulate Gauss's law, introduced a few new
More informationElectric Charge & Force Problems - 1 v Goodman & Zavorotniy
The Atom Chapter Questions 1. Which part on an atom carries a positive charge? Which carries the negative charge? 2. How many types of electric charge are there? 3. When a neutral atom captures a free
More informationCh 16 practice. Multiple Choice Identify the choice that best completes the statement or answers the question.
Ch 16 practice Multiple Choice Identify the choice that best completes the statement or answers the question. 1. What happens when a rubber rod is rubbed with a piece of fur, giving it a negative charge?
More informationCoulomb s Law. Phys102 Lecture 2. Key Points. Coulomb s Law The electric field (E is a vector!) References
Phys102 Lecture 2 Phys102 Lecture 2-1 Coulomb s Law Key Points Coulomb s Law The electric field (E is a vector!) References SFU Ed: 21-5,6,7,8,9,10. 6 th Ed: 16-6,7,8,9,+. Phys102 Lecture 2 Phys102 Lecture
More informationLecture PowerPoints. Chapter 16 Physics: Principles with Applications, 7 th edition Giancoli
Lecture PowerPoints Chapter 16 Physics: Principles with Applications, 7 th edition Giancoli This work is protected by United States copyright laws and is provided solely for the use of instructors in teaching
More information8/24/2018. Charge Polarization. Charge Polarization. Charge Polarization
Charge Polarization The figure shows how a charged rod held close to an electroscope causes the leaves to repel each other. How do charged objects of either sign exert an attractive force on a neutral
More informationIntro Video: n What is charge? n v=dvlpasdwxpy
Electrostatics Intro Video: n What is charge? n https://www.youtube.com/watch? v=dvlpasdwxpy What is electrostatics? n Electrostatics or electricity at rest n Involves electric charges, the forces between
More informationBook page. Coulombs Law
Book page Coulombs Law A Coulomb torsion balance A Coulomb torsion balance is used to measure the force between two charged objects Coulomb's Torsion Balance Two conducting spheres fixed on insulating
More informationElectrostatics. Electrostatics - the study of electrical charges that can be collected and held in one place - charges at rest.
Electrostatics Electrostatics - the study of electrical charges that can be collected and held in one place - charges at rest. Examples: BASIC IDEAS: Electricity begins inside the atom itself. An atom
More informationGeneral Physics (PHY 2140)
General Physics (PHY 2140) Lecture 2 Electrostatics Electric flux and Gauss s law Electrical energy potential difference and electric potential potential energy of charged conductors http://www.physics.wayne.edu/~alan/
More informationElectric field Physics 122
Electric field Physics 122 9/3/13 Lecture II 1 Workshops start next week. The first homework assignment is due next week as well! Workshops 9/3/13 Lecture II 2 9/3/13 Lecture II 3 Concepts Primary concepts:
More informationPHYSICS 12 NAME: Electrostatics Review
NAME: Electrostatics Review 1. The diagram below shows two positive charges of magnitude Q and 2Q. Which vector best represents the direction of the electric field at point P, which is equidistant from
More informationSection 1: Electric Fields
PHY 132 Outline of Lecture Notes i Section 1: Electric Fields A property called charge is part of the basic nature of protons and electrons. Large scale objects become charged by gaining or losing electrons.
More informationConductors: External Electric Field 1/28/2018 1
Conductors: External Electric Field 1/28/2018 1 Two Parallel Conducting Sheets Find the electric field to the left of the sheets, between the sheets and to the right of the sheets. 1/28/2018 2 Uniform
More informationPhys102 General Physics II. Chapter 24: Gauss s Law
Phys102 General Physics II Gauss Law Chapter 24: Gauss s Law Flux Electric Flux Gauss Law Coulombs Law from Gauss Law Isolated conductor and Electric field outside conductor Application of Gauss Law Charged
More informationTest Review FQ3eso_U5_3_Electric force
Test Review FQ3eso_U5_3_Electric force Identify the letter of the choice that best completes the statement or answers the question. 1.- Two metal spheres, A and B, possess charges of 1.0 microcoulomb and
More informationis at the origin, and charge q μc be located if the net force on q
Term: 152 Saturday, April 09, 2016 Page: 1 Q1. Three point charges are arranged along the x-axis. Charge q 3.0 0 μc 1 is at the origin, and charge q 5.0 0 μc 2 is at x = 0.200 m. Where should a third charge
More information2: What is the magnitude of the electric charge of an electron? 3: What is the law of conservation of electric charge?
Chapter 18 Discussion January-03-15 8:58 PM Electric Forces and Electric Fields Reading Review 1: What is the SI unit of electric charge? 2: What is the magnitude of the electric charge of an electron?
More informationPH 202-1E Fall Electric Forces and Electric Fields. Lectures 1-4. Chapter 18 (Cutnell & Johnson, Physics 6 th edition)
PH 202-1E Fall 2006 Electric Forces and Electric Fields Lectures 1-4 Chapter 18 (Cutnell & Johnson, Physics 6 th edition) 1 Electric Force and Electric Charge Qualitatively, a force is any push or pull
More informationCPS lesson Electric Field ANSWER KEY
CPS lesson Electric Field ANSWER KEY 1. A positively charged rod is brought near a conducting sphere on an insulated base. The opposite side of the sphere is briefly grounded. If the rod is now withdrawn,
More informationOUT OF BOOK QUESTION. Sphere Y is now moved away from X, as in Figure (b).
X and Y are two uncharged metal spheres on insulating stands, and are in contact with each other. A positively charged rod R is brought close to X as shown in Figure (a). Sphere Y is now moved away from
More informationSemester 2 Physics (SF 026) Lecture: BP 3 by Yew Sze Fiona Website:
Semester 2 Physics (SF 026) Lecture: BP 3 by Yew Sze Ling @ Fiona Website: http://yslphysics.weebly.com/ Chapter 1: Electrostatics The study of electric charges at rest, the forces between them and the
More informationELECTROSTATICS. the study of electric charges, forces and fields Static Electricity is Stationary Electricity or Accumulation of charge
Electrostatics 1 ELECTROSTATICS the study of electric charges, forces and fields Static Electricity is Stationary Electricity or Accumulation of charge Fundamental Rule Opposites attract, Likes Repel Things
More informationChapter 16 Electric Charge and Electric Field
Chapter 16 Electric Charge and Electric Field 16.1 Static Electricity; Electric Charge and Its Conservation Objects can be charged by rubbing 16.1 Static Electricity; Electric Charge and Its Conservation
More informationPhysics 2020: Sample Problems for Exam 1
Physics 00: Sample Problems for Eam 1 1. Two particles are held fied on the -ais. The first particle has a charge of Q 1 = 6.88 10 5 C and is located at 1 = 4.56 m on the -ais. The second particle has
More informationElectric Charge & Force Problems - 1 v Goodman & Zavorotniy
Electric Charge Chapter Questions 1. What happens to a plastic rod when it is rubbed with a piece of animal fur? What happens to the piece of fur? 2. How many types of electric charge are there? What are
More informationPhysics 1214 Chapter 17: Electric Charge and Electric Field
Physics 1214 Chapter 17: Electric Charge and Electric Field Introduction electrostatic interactions interactions between electric charges at rest in our frame of reference modeled by Coulomb s equation
More informationReview. Spring Semester /21/14. Physics for Scientists & Engineers 2 1
Review Spring Semester 2014 Physics for Scientists & Engineers 2 1 Notes! Homework set 13 extended to Tuesday, 4/22! Remember to fill out SIRS form: https://sirsonline.msu.edu Physics for Scientists &
More informationPHYSICS 12 NAME: Electrostatics Review
NAME: Electrostatics Review 1. The diagram below shows two positive charges of magnitude Q and 2Q. Which vector best represents the direction of the electric field at point P, which is equidistant from
More informationSamples of solutions to conceptual problems from chapter 18 Cutnell & Johnson 7E
Samples of solutions to conceptual problems from chapter 8 Cutnell & Johnson. A metallic object is given a positive charge by the process of induction, as illustrated in Figure 8.8. (a) Does the mass of
More informationElectric Charges and Forces. Lecture 1. Chapter 25. Physics II. Course website:
Lecture 1 Chapter 25 Physics II Electric Charges and Forces 95.144 Course website: http://faculty.uml.edu/andriy_danylov/teaching/physicsii Course Website Everything you need to know about the course can
More informationPhysics Electrostatics
Homework Procedure: Read pages specified in Honors Physics Essentials by Dan Fullerton. Questions labeled TQ will be questions about the text you read. These TQ s can be answered in one word, one phrase,
More informationStatic Electricity Lecture
Static Electricity Lecture Atoms are made of protons, which have a positive charge, and electrons, that have a negative charge. This little electron is what carries the electric current in wires. Charges
More informationAP Physics 1 Multiple Choice Questions - Chapter 11
1 Two protons are held a distance d apart. The electrostatic force and the gravitational force that one protons exerts on the other are F e and F g, respectively. Which of the following correctly compares
More informationAP Physics 2012 Practice Quiz 4, Conduction & Electric Fields
Name: Class: Date: ID: A AP Physics 01 Practice Quiz 4, Conduction & Electric Fields Multiple Choice Identify the choice that best completes the statement or answers the question. 1. ( points) A repelling
More informationELECTROSTATIC FORCE. ELECTROSTATICS - I Physics Without Fear.
ELECTROSTATIC FORCE ELECTROSTATICS - I Physics Without Fear CONTENTS Frictional Electricity Properties of Electric Charges Coulomb s Law Coulomb s Law in Vector Form Units of Charge Relative Permittivity
More informationChapter 1 Electric Charges, Forces, and Fields
Chapter 1 Electric Charges, Forces, and Fields 1 Units of Chapter 1 Electric Charge Insulators and Conductors Coulomb s Law The Electric Field Electric Field Lines Electric Fields Generated by simple distributions
More informationPHYSICS - CLUTCH CH 22: ELECTRIC FORCE & FIELD; GAUSS' LAW
!! www.clutchprep.com CONCEPT: ELECTRIC CHARGE e Atoms are built up of protons, neutrons and electrons p, n e ELECTRIC CHARGE is a property of matter, similar to MASS: MASS (m) ELECTRIC CHARGE (Q) - Mass
More informationUnit 3B. Gravitational Fields Electric Fields
Unit 3B Gravitational Fields Electric Fields 1 Force of gravity can be calculated using Newton s Universal Law of Gravity FG F G m m 1 r 1 2 2 Force of gravity is directly proportional to the masses involved
More informationChapter Assignment Solutions
Chapter 20-21 Assignment Solutions Table of Contents Page 558 #22, 24, 29, 31, 36, 37, 40, 43-48... 1 Lightning Worksheet (Transparency 20-4)... 4 Page 584 #42-46, 58-61, 66-69, 76-79, 84-86... 5 Chapter
More informationINTRODUCTION TO BIOPHYSICS. II semester, week /2015
INTRODUCTION TO BIOPHYSICS II semester, week 3 2014/2015 INTRODUCTION TO ELECTRICITY Electricity phenomena associated with interaction between electrically charged objects PARTICLES AND ELECTRIC CHARGE
More informationReview of EM Basics (from Phys1E03)
Lecture 2 Review of EM Basics (from Phys1E03) Sections: 2.1, 2.2, 8.1, 8.2, 8.5 Homework: See homework file LECTURE 2 slide 1 [istockphoto.com] ELECTRICITY LECTURE 2 slide 2 fundamental property of matter
More informationCopyright 2008 Pearson Education, Inc., publishing as Pearson Addison-Wesley.
Electric fields are responsible for the electric currents that flow through your computer and the nerves in your body. Electric fields also line up polymer molecules to form the images in a liquid crystal
More informationGravity: What s the big attraction? Dan Wilkins Institute of Astronomy
Gravity: What s the big attraction? Dan Wilkins Institute of Astronomy Overview What is gravity? Newton and Einstein What does gravity do? Extreme gravity The true power of gravity Getting things moving
More informationCoulomb's Law * OpenStax. This work is produced by OpenStax-CNX and licensed under the Creative Commons Attribution License 3.0
OpenStax-CNX module: m42308 1 Coulomb's Law * OpenStax This work is produced by OpenStax-CNX and licensed under the Creative Commons Attribution License 3.0 Abstract State Coulomb's law in terms of how
More informationConcepTest PowerPoints
ConcepTest PowerPoints Chapter 16 Physics: Principles with Applications, 6 th edition Giancoli 2005 Pearson Prentice Hall This work is protected by United States copyright laws and is provided solely for
More informationFields. Electric Field Strength Section 13.6
Fields Electric Field Strength Section 13.6 Outcomes In this lesson you will : define electric field strength and use the definition to express the concept mathematically use Coulomb's Law to write a second
More informationLecture 2 [Chapter 21] Tuesday, Jan 17th
Lecture 2 [Chapter 21] Tuesday, Jan 17th Administrative Items Assignments this week: read Ch 21 and Ch 22 in the textbook complete Pre-Lecture Ch22 HW assignment complete Ch 21 HW assignment [Pre-Lecture
More information18.4 Coulomb's Law *
OpenStax-CNX module: m52384 1 18.4 Coulomb's Law * Bobby Bailey Based on Coulomb's Law by OpenStax This work is produced by OpenStax-CNX and licensed under the Creative Commons Attribution License 4.0
More informationElectric Charges and Forces
Lecture 1 Chapter 25 Physics II Electric Charges and Forces Course website: http://faculty.uml.edu/andriy_danylov/teaching/physicsii Course Website Everything you need to know about the course can be found
More informationFlux. Flux = = va. This is the same as asking What is the flux of water through the rectangle? The answer depends on:
Ch. 22: Gauss s Law Gauss s law is an alternative description of Coulomb s law that allows for an easier method of determining the electric field for situations where the charge distribution contains symmetry.
More information