1. (a) What is the meaning of semiconductor? [1 mark]
|
|
|
- Egbert Bradford
- 6 years ago
- Views:
Transcription
![TRIAL KEDAH 05 ESSAY SECTION B. (a) What is the meaning of semiconductor? [ mark] (b) Diagram 0.](/docs-images/75/71650292/images/1-2.jpg "shows a boron (B) atom embedded among silicon (Si) atoms in a semiconductor. In Diagram 0. the embedded atom is phosphorus (P).")
1 TRIAL KEDAH 05 ESSAY SECTION B. (a) What is the meaning of semiconductor? [ mark] (b) Diagram 0. shows a boron (B) atom embedded among silicon (Si) atoms in a semiconductor. In Diagram 0. the embedded atom is phosphorus (P). (i) Diagram 0. Diagram 0. What is the purpose of doping a semiconductor? [ mark] (ii) Compare the type of semiconductor produced by the doping of a pure semiconductor like silicon with boron and phosphorus. Relate the type of semiconductor with the majority charge found in it. [4 marks]
2 (c) Diagram 0.3 shows the input signal and output signal of a circuit connected to a diode. Diagram 0.3 Explain how the output signal is produced. [4 marks] (d) Diagram 0.4 shows an electronic circuit where a bulb lights up when the surrounding is dark. You are require to modify the circuit in Diagram 0.4 so that a bell will ring when the surrounding is hot. You are given the following components to modify the circuit. Component Symbol Thermistor Diagram 0.4 Resistor Bell Draw the new circuit and explain how it works. [0 marks] TOTAL 0 marks
3 SPM 05 ESSAY SECTION C. Diagram. shows a man standing in front of a curve mirror with his image shown in the mirror. Diagram. (a) (i) State a light phenomenon involved in the formation of the image. [ mark] (ii) Based on Diagram., explain how a magnified image of the man is formed by the curve mirror. [4 marks] (b) Curved mirrors are always used as security mirror in shops to watch out for shop-lifter. You are required to investigate the characteristics of curved mirrors as shown in Table. Curved mirror Type of curved mirror Size of curved mirror Position of curved mirror Characteristic of coated material for reflection of light inside the curved mirror P Convex Small Low Weak reflector Q Concave Big High Strong reflector S Convex Big High Strong reflector T Concave Small Low Weak reflector Table Explain the suitability of each characteristic of the curved mirror to be used as an effective security mirror. Determine the most suitable curved mirror that can be used as a security mirror. Give reasons for your choice.. [0 marks]
4 (c) Diagram. shows the formation of an image by a convex lens. The focal length of the lens is 6 cm and the height of the object is cm. Calculate Diagram. (i) (ii) (iii) The power of the convex lens. The image distance. The height of the image. [5 marks] TOTAL 0 marks Pressure can burst a pipe, But pressure also make diamonds So PUSH YOURSELF No One Else Is Going To Do It for You
5 Answer Scheme TRIAL KEDAH 05 NO ANSWER MARK. (a) A substance that has a conductivity between the conductivity of an insulator and a conductor / metal (b) (i) To increase the conductivity // To reduce the resistivity (ii) Doping with boron produces a p-type semiconductor Majority charge carriers are holes Doping with phosphorus produces a n-type semiconductor Majority charge carriers are electrons (c) During the first half cycle : - the resistance of the diode is low - a current flows in the circuit // the diode is forward biased During the next half cycle : - the resistance of the diode is very high - no current flows in the circuit // the diode is reverse biased (d). thermistor replaces the resistor. resistor replaces the LDR 3. bell replaces the bulb 4. complete circuit When the surrounding is hot : 5. the resistance of the thermistor decreases 6. the potential difference across the thermistor decreases 7. the potential difference across the resistor increases 8. the base current increases the transistor is switched on 9. the collector current flows 0. the bell ring 0 TOTAL 0
6 SPM 05 NO ANSWER MARK. (a) (i) Reflection of light (ii) Explain how a magnified image of the man is formed by the curve mirror. Object < focal length. Image: magnified, virtual and upright (b) Decision making Characteristic Type of curved mirror: Convex Size of curved mirror: Big Position of curved mirror: High Characteristic of coated material for reflection of light inside the curved mirror: Strong reflector (c) (i) P = = f 0.06 P = 6.67 D (ii) = + f u v = - = - v f u 6 9 v =8 cm S Reason To produce large scope of vision // view To produce clear and sharp image // brighter image Can see wider area // wider coverage area // it is not block by obstacles All the light are reflected // better reflection // sharp image produce Type of curved mirror: Convex Size of curved mirror: Big Position of curved mirror: High Characteristic of coated material for reflection of light inside the curved mirror: Strong reflector (awu) (awu) (iii) v h 8 hi u ho 9 h = 4 cm i m = = = = i (awu) TOTAL 0
NO. ANSWER MARK 1. (a) Reflection 1 (b) At P and is virtual 1 (c) Upright//same size//laterally inverted 1 (d) 8:00 1 TOTAL 4
SCHEME ANSWER STRUCTURE TRIAL SBP 206. (a) Reflection (b) At P and is virtual (c) Upright//same size//laterally inverted (d) 8:00 TOTAL 4 2. (a) (i) Uniform acceleration / Velocity increases uniformly
Introduction to Transistors. Semiconductors Diodes Transistors
Introduction to Transistors Semiconductors Diodes Transistors 1 Semiconductors Typical semiconductors, like silicon and germanium, have four valence electrons which form atomic bonds with neighboring atoms
As light level increases, resistance decreases. As temperature increases, resistance decreases. Voltage across capacitor increases with time LDR
LDR As light level increases, resistance decreases thermistor As temperature increases, resistance decreases capacitor Voltage across capacitor increases with time Potential divider basics: R 1 1. Both
UNIVERSITY OF CALIFORNIA, BERKELEY College of Engineering Department of Electrical Engineering and Computer Sciences
UNIVERSITY OF CALIFORNIA, BERKELEY College of Engineering Department of Electrical Engineering and Computer Sciences EE 105: Microelectronic Devices and Circuits Spring 2008 MIDTERM EXAMINATION #1 Time
b. Which bulb is brightest? Justify your answer.
Physics 2080 Final Exam Problems Due April 28, 2011 Instructions: This is part of the final exam. Books and notes are allowed, but all work should be YOUR OWN. Do not work in groups; every student should
They keep the voltage the same and use this circuit to measure the current. Variable resistor. Reading on ammeter in amps
1 Ksenia and Eva investigate five different variable resistors. They set each variable resistor to the maximum resistance. They keep the voltage the same and use this circuit to measure the current. A
AISSCE 2016 EXPECTED (SURE SHORT) QUESTIONS WEIGHTAGE-WISE 2016
CLASS: XII AISSCE 2016 Subject: Physics EXPECTED (SURE SHORT) QUESTIONS WEIGHTAGE-WISE 2016 Q3 Section A ( 1 Mark ) A force F is acting between two charges placed some distances apart in vacuum. If a brass
LECTURE 23. MOS transistor. 1 We need a smart switch, i.e., an electronically controlled switch. Lecture Digital Circuits, Logic
LECTURE 23 Lecture 16-20 Digital Circuits, Logic 1 We need a smart switch, i.e., an electronically controlled switch 2 We need a gain element for example, to make comparators. The device of our dreams
PHYSICS. Downloaded From: Time Allowed : 3 Hrs. Max. Marks 60
PHYSICS Time Allowed : Hrs. Max. Marks 60 * Candidates are required to give their answers in their own words as far as practicable. * Marks allotted to each question are indicated against it. Special Instructions
Semi-Conductors insulators semi-conductors N-type Semi-Conductors P-type Semi-Conductors
Semi-Conductors In the metal materials considered earlier, the coupling of the atoms together to form the material decouples an electron from each atom setting it free to roam around inside the material.
ITT Technical Institute ET215 Devices I Unit 1
ITT Technical Institute ET215 Devices I Unit 1 Chapter 1 Chapter 2, Sections 2.1-2.4 Chapter 1 Basic Concepts of Analog Circuits Recall ET115 & ET145 Ohms Law I = V/R If voltage across a resistor increases
Most matter is electrically neutral; its atoms and molecules have the same number of electrons as protons.
Magnetism Electricity Magnetism Magnetic fields are produced by the intrinsic magnetic moments of elementary particles associated with a fundamental quantum property, their spin. -> permanent magnets Magnetic
Electronic Circuits for Mechatronics ELCT 609 Lecture 2: PN Junctions (1)
Electronic Circuits for Mechatronics ELCT 609 Lecture 2: PN Junctions (1) Assistant Professor Office: C3.315 E-mail: eman.azab@guc.edu.eg 1 Electronic (Semiconductor) Devices P-N Junctions (Diodes): Physical
Lecture (02) PN Junctions and Diodes
Lecture (02) PN Junctions and Diodes By: Dr. Ahmed ElShafee ١ I Agenda N type, P type semiconductors N Type Semiconductor P Type Semiconductor PN junction Energy Diagrams of the PN Junction and Depletion
CBSE PHYSICS QUESTION PAPER (2005)
CBSE PHYSICS QUESTION PAPER (2005) (i) (ii) All questions are compulsory. There are 30 questions in total. Questions 1 to 8 carry one mark each, Questions 9 to 18 carry two marks each, Question 19 to 27
Semiconductor Physics fall 2012 problems
Semiconductor Physics fall 2012 problems 1. An n-type sample of silicon has a uniform density N D = 10 16 atoms cm -3 of arsenic, and a p-type silicon sample has N A = 10 15 atoms cm -3 of boron. For each
Introduction to Semiconductor Physics. Prof.P. Ravindran, Department of Physics, Central University of Tamil Nadu, India
Introduction to Semiconductor Physics 1 Prof.P. Ravindran, Department of Physics, Central University of Tamil Nadu, India http://folk.uio.no/ravi/cmp2013 Review of Semiconductor Physics Semiconductor fundamentals
Chapter 21 Electric Current and Circuits
Chapter 21 Electric Current and Circuits 1 As an introduction to this chapter you should view the following movie. If you cannot click on the link, then copy it and paste it into your web browser. http://www.ionaphysics.org/movies/vir.mp4
A.M. WEDNESDAY, 13 May minutes
Candidate Name Centre Number Candidate Number 0 GCSE 293/02 ELECTRONICS MODULE TEST E1 HIGHER TIER AM WEDNESDAY, 13 May 2009 45 minutes For Examiner s use Total Mark ADDITIONAL MATERIALS In addition to
Semiconductor Physics fall 2012 problems
Semiconductor Physics fall 2012 problems 1. An n-type sample of silicon has a uniform density N D = 10 16 atoms cm -3 of arsenic, and a p-type silicon sample has N A = 10 15 atoms cm -3 of boron. For each
Physics Department. CfE Higher Unit 3: Electricity. Problem Booklet
Physics Department CfE Higher Unit 3: Electricity Problem Booklet Name Class 1 Contents Exercise 1: Monitoring and measuring a.c. Exercise 2: Current, voltage, power and resistance Exercise 3: Electrical
4. I-V characteristics of electric
KL 4. - characteristics of electric conductors 4.1 ntroduction f an electric conductor is connected to a voltage source with voltage a current is produced. We define resistance being the ratio of the voltage
UNIVERSITY OF CALIFORNIA, BERKELEY College of Engineering Department of Electrical Engineering and Computer Sciences
UNIVERSITY OF CALIFORNIA, BERKELEY College of Engineering Department of Electrical Engineering and Computer Sciences EECS 40 Spring 2000 Introduction to Microelectronic Devices Prof. King MIDTERM EXAMINATION
CLASS 12th. Semiconductors
CLASS 12th Semiconductors 01. Distinction Between Metals, Insulators and Semi-Conductors Metals are good conductors of electricity, insulators do not conduct electricity, while the semiconductors have
3.E: Good. What is internal resistance? S: The resistance offered by the electrodes and electrolyte of a cell is called internal resistance.
Physics Practical viva-voce Questions-2019 Live Example- Potentiometer (Assuming that the student was assigned the experiment To determine the internal resistance of a primary cell( which can not be recharged)
Practice Paper-3. Q. 2. An electron beam projected along + X-axis, in a magnetic field along the + Z-axis. What is
Practice Paper-3 Q. 1. An electric dipole of dipole moment 20 10 6 cm is enclosed by a closed surface. What is the net flux coming out of the surface? Q. 2. An electron beam projected along + X-axis, in
PHYSICS ORDINARY LEVEL
PRE-LEAVING CERTIFICATE EXAMINATION, 2010 PHYSICS ORDINARY LEVEL TIME: 3 HOURS Answer three questions from section A and five questions from section B. Page 1 of 9 SECTION A (120 marks) Answer three questions
Chapter 2 The Well 9/5/2017. E E 480 Introduction to Analog and Digital VLSI Paul M. Furth New Mexico State University
hapter 2 The Well E E 480 Introduction to Analog and Digital VLSI Paul M. Furth New Mexico State University p+ sub ~ 150 m thick, p-epi ~ 30 m thick All transistors go in p- epi layer Typical p- doping
Unit IV Semiconductors Engineering Physics
Introduction A semiconductor is a material that has a resistivity lies between that of a conductor and an insulator. The conductivity of a semiconductor material can be varied under an external electrical
STD : 12 TH GSEB PART A. 1. An electric dipole is placed in a uniform field. The resultant force acting on it...
STD : 1 TH PHYSICS RJ VISION PVT. LTD. (MOST STABLE & INNOVATIVE INSTITUTE) GSEB COURSE NAME: 1 TH Total Marks : 100 Time : 3 hrs PART A Multiple Choice uestions : 1. An electric dipole is placed in a
Lecture 1. OUTLINE Basic Semiconductor Physics. Reading: Chapter 2.1. Semiconductors Intrinsic (undoped) silicon Doping Carrier concentrations
Lecture 1 OUTLINE Basic Semiconductor Physics Semiconductors Intrinsic (undoped) silicon Doping Carrier concentrations Reading: Chapter 2.1 EE105 Fall 2007 Lecture 1, Slide 1 What is a Semiconductor? Low
PHYSICS 2005 (Delhi) Q3. The power factor of an A.C. circuit is 0.5. What will be the phase difference between voltage and current in this circuit?
General Instructions: 1. All questions are compulsory. 2. There is no overall choice. However, an internal choke has been pro vided in one question of two marks, one question of three marks and all three
CSCB58:Computer Organization
CSC58:Computer Organization Instructor: rian Harrington brian.harrington@utsc.utoronto.ca * Original slides by Steve Engels Why take CSC58? To better understand computers! See what's going on "under the
FREQUENTLY ASKED QUESTIONS February 21, 2017
FREQUENTLY ASKED QUESTIONS February 21, 2017 Content Questions How do you place a single arsenic atom with the ratio 1 in 100 million? Sounds difficult to get evenly spread throughout. Yes, techniques
Acoustics and Fourier Transform
AFT Acoustics and Fourier Transform 1. A Hamming filter is used to compute FFT (Fast Fourier Transform) plots in the AFT experiment. What is the reason for using such a filter? 2. Briefly describe what
The child becomes electrically charged when he goes down the slide
P4 Revision Questions Q. The figure below shows a slide in a children s playground. (a) A child of mass 8 kilograms goes down the slide. The vertical distance from the top to the bottom of the slide is
mith College Computer Science CSC270 Spring 16 Circuits and Systems Lecture Notes Week 3 Dominique Thiébaut
mith College Computer Science CSC270 Spring 16 Circuits and Systems Lecture Notes Week 3 Dominique Thiébaut dthiebaut@smith.edu Crash Course in Electricity and Electronics Zero Physics background expected!
Class XII_All India_Physics_Set-2
Class XII_All India_Physics_Set- 17. Draw V I characteristics of a p-n junction diode. Answer the following questions, giving reasons: (i) Why is the current under reverse bias almost independent of the
CLASS 10 PHYSICS PAST PAPERS
1 https://www.umairbfrend.wordpress.com SHORT QUESTIONS CHAPTER 10 1) Define Amplitude and Displacement. 2) Define Diffraction. 3) Write unit of Frequency. 4) What are Transverse waves? 5) What is time
Semiconductors. Semiconductors also can collect and generate photons, so they are important in optoelectronic or photonic applications.
Semiconductors Semiconducting materials have electrical properties that fall between true conductors, (like metals) which are always highly conducting and insulators (like glass or plastic or common ceramics)
General Physics II Summer Session 2013 Review Ch - 16, 17, 18
95.104 General Physics II Summer Session 2013 Review Ch - 16, 17, 18 A metal ball hangs from the ceiling by an insulating thread. The ball is attracted to a positivecharged rod held near the ball. The
Electric Fields. Basic Concepts of Electricity. Ohm s Law. n An electric field applies a force to a charge. n Charges move if they are mobile
Basic Concepts of Electricity oltage E Current I Ohm s Law Resistance R E = I R Electric Fields An electric field applies a force to a charge Force on positive charge is in direction of electric field,
David J. Starling Penn State Hazleton PHYS 214
Being virtually killed by a virtual laser in a virtual space is just as effective as the real thing, because you are as dead as you think you are. -Douglas Adams, Mostly Harmless David J. Starling Penn
Ohm s Law and Electronic Circuits
Production Ohm s Law and Electronic Circuits Page 1 - Cyber Security Class ELECTRICAL CIRCUITS All you need to be an inventor is a good imagination and a pile of junk. -Thomas Edison Page 2 - Cyber Security
2013 DSE PHYSICS/ COMBINED SCIENCE (PHYSICS) IB-2 H K LAU W I TANG
2013 DSE PHYSICS/ COMBINED SCIENCE (PHYSICS) IB-2 H K LAU W I TANG QUESTION 7 (a) c = f => 310 8 m s 1 = f (0.02 m) [1M] 1M for correct substitution f = 1.5 10 10 Hz or 15000 MHz [1A] - Mistook the speed
Answer three questions from Section A and five questions from Section B.
L.35 PRE-LEAVING CERTIFICATE EXAMINATION, 2016 PHYSICS ORDINARY LEVEL TIME 3 HOURS Answer three questions from Section A and five questions from Section B. Relevant data are listed in the Formulae and
Farr High School HIGHER PHYSICS. Unit 3 Electricity. Question Booklet
Farr High School HIGHER PHYSICS Unit 3 Electricity Question Booklet 1 MONITORING ND MESURING.C. 1. What is the peak voltage of the 230 V mains supply? The frequency of the mains supply is 50 Hz. How many
Diodes. EE223 Digital & Analogue Electronics Derek Molloy 2012/2013.
Diodes EE223 Digital & Analogue Electronics Derek Molloy 2012/2013 Derek.Molloy@dcu.ie Diodes: A Semiconductor? Conductors Such as copper, aluminium have a cloud of free electrons weak bound valence electrons
Mock Examination Physics 2 nd Book Time 3 Hrs MM : 70
Mock Examination Physics 2 nd Book Time 3 Hrs MM : 70 SECTION A 1. How does the angle of minimum deviation of a glass prism vary, If the incident violet light is replaced with red light? 2. What is principle
SAMPLE PAPER-05 (solved) PHYSICS (Theory) Class XII. Time allowed: 3 hours Marks: 70
SAMPLE PAPER-05 (solved) PHYSICS (Theory) Class XII Time allowed: 3 hours Marks: 70 Maximum General Instructions: a) All the questions are compulsory. b) There are 26 questions in total. c) Questions 1
Unit I: Electrostatics (Periods 25)
14. To demonstrate resonance using an open pipe. 15. To demonstrate the direction of torque. 16. To demonstrate the law of moments. Recommended Textbooks. 1. Physics Part-I, Textbook for Class XI, Published
LESSON 5: ELECTRICITY II
LESSON 5: ELECTRICITY II The first two points are a review of the previous lesson 1.1.ELECTRIC CHARGE - Electric charge is a property of all objects and is responsible for electrical phenomena. -All matter
PHYS 102 Exams. PHYS 102 Exam 3 PRINT (A)
PHYS 102 Exams PHYS 102 Exam 3 PRINT (A) The next two questions pertain to the situation described below. A metal ring, in the page, is in a region of uniform magnetic field pointing out of the page as
electronics fundamentals
electronics fundamentals circuits, devices, and applications THOMAS L. FLOYD DAVID M. BUCHLA Lesson 1: Diodes and Applications Semiconductors Figure 1-1 The Bohr model of an atom showing electrons in orbits
Lecture (02) Introduction to Electronics II, PN Junction and Diodes I
Lecture (02) Introduction to Electronics II, PN Junction and Diodes I By: Dr. Ahmed ElShafee ١ Agenda Current in semiconductors/conductors N type, P type semiconductors N Type Semiconductor P Type Semiconductor
Electronics The basics of semiconductor physics
Electronics The basics of semiconductor physics Prof. Márta Rencz, Gergely Nagy BME DED September 16, 2013 The basic properties of semiconductors Semiconductors conductance is between that of conductors
Electro - Principles I
Electro - Principles I Page 10-1 Atomic Theory It is necessary to know what goes on at the atomic level of a semiconductor so the characteristics of the semiconductor can be understood. In many cases a
Capacitors Diodes Transistors. PC200 Lectures. Terry Sturtevant. Wilfrid Laurier University. June 4, 2009
Wilfrid Laurier University June 4, 2009 Capacitor an electronic device which consists of two conductive plates separated by an insulator Capacitor an electronic device which consists of two conductive
ISSUES TO ADDRESS...
Chapter 12: Electrical Properties School of Mechanical Engineering Choi, Hae-Jin Materials Science - Prof. Choi, Hae-Jin Chapter 12-1 ISSUES TO ADDRESS... How are electrical conductance and resistance
10/14/2018. Current. Current. QuickCheck 30.3
Current If QCurrent is the total amount of charge that has moved past a point in a wire, we define the current I in the wire to be the rate of charge flow: The SI unit for current is the coulomb per second,
PHYSICS. SECTION I (40 Marks) Attempt all questions from this Section.
PHYSICS SCIENCE Paper 1 (Two hours) Answers to this Paper must be written on the paper provided separately. You will not be allowed to write during the first 15 minutes. This time is to be spent in reading
ELECTRONIC I Lecture 1 Introduction to semiconductor. By Asst. Prof Dr. Jassim K. Hmood
ELECTRONIC I Lecture 1 Introduction to semiconductor By Asst. Prof Dr. Jassim K. Hmood SOLID-STATE ELECTRONIC MATERIALS Electronic materials generally can be divided into three categories: insulators,
PHYSICS QUESTION PAPER CLASS-XII
PHYSICS QUESTION PAPER CLASS-XII Time : 3.00 Hours] [Maximum Marks : 100 Instructions : 1. There are A, B, C and D sections, containing 60 questions in this question paper. 2. Symbols used in this question
Useful Information. W = F x. U g = mgh P=I V. v = fλ. Conceptual Physics Final Exam Review Work and Energy. DC Circuits
Useful Information Work and Energy W = F x W = work [J] F = force [N] x = displacement [m] U g = mgh U g = gravitational potential energy [J] m = mass [kg] h = height [m] DC Circuits I =!! I = current
6.012 Electronic Devices and Circuits
Page 1 of 12 YOUR NAME Department of Electrical Engineering and Computer Science Massachusetts Institute of Technology 6.012 Electronic Devices and Circuits FINAL EXAMINATION Open book. Notes: 1. Unless
Introduction to Power Semiconductor Devices
ECE442 Power Semiconductor Devices and Integrated Circuits Introduction to Power Semiconductor Devices Zheng Yang (ERF 3017, email: yangzhen@uic.edu) Power Semiconductor Devices Applications System Ratings
Sure-shot questions for SA-2 (Class XII) Physics
Sure-shot questions for SA-2 (Class XII) Physics 1. Two point charges q and -2q are kept d distance apart. Find the location of the point relative to charge q at which potential due to this system of charges
5. ELECTRIC CURRENTS
5. ELECTRIC CURRENTS TOPIC OUTLINE Section Recommended Time Giancoli Section 5.1 Potential Difference, Current, Resistance 5.2 Electric Circuits 3h 19.1, 19.2 6.2 Electric Field and Force 6.3 Magnetic
4.2.1 Current, potential difference and resistance
4.2 Electricity Electric charge is a fundamental property of matter everywhere. Understanding the difference in the microstructure of conductors, semiconductors and insulators makes it possible to design
Electronics EC /2/2012. * In-class exams: 40% 7 th week exam 25% 12 th week exam 15%
Arab Academy for Science, Technology and Maritime Transport Electronics EC 331 Dr. Mohamed Hassan Course Assessment * In-class exams: 40% 7 th week exam 25% 12 th week exam 15% *Tutorial exams and activities:
Chapter 3 Basics Semiconductor Devices and Processing
Chapter 3 Basics Semiconductor Devices and Processing Hong Xiao, Ph. D. www2.austin.cc.tx.us/hongxiao/book.htm Hong Xiao, Ph. D. www2.austin.cc.tx.us/hongxiao/book.htm 1 Objectives Identify at least two
This leads to or ( )( ). 8. B LED s are Light Emitting Diodes 9. D The expression for the period of a simple pendulum at small angles is.
2013 PhysicsBowl Solutions # Ans # Ans # Ans # Ans # Ans 1 C 11 E 21 E 31 D 41 A 2 B 12 C 22 B 32 E 42 C 3 D 13 E 23 D 33 A 43 A 4 E 14 B 24 B 34 A 44 E 5 A 15 D 25 A 35 C 45 C 6 C 16 D 26 B 36 C 46 E
From Last Time Important new Quantum Mechanical Concepts. Atoms and Molecules. Today. Symmetry. Simple molecules.
Today From Last Time Important new Quantum Mechanical Concepts Indistinguishability: Symmetries of the wavefunction: Symmetric and Antisymmetric Pauli exclusion principle: only one fermion per state Spin
Quiz #1 Practice Problem Set
Name: Student Number: ELEC 3908 Physical Electronics Quiz #1 Practice Problem Set? Minutes January 22, 2016 - No aids except a non-programmable calculator - All questions must be answered - All questions
ESE370: Circuit-Level Modeling, Design, and Optimization for Digital Systems
ESE370: Circuit-Level Modeling, Design, and Optimization for Digital Systems Lec 6: September 14, 2015 MOS Model You are Here: Transistor Edition! Previously: simple models (0 and 1 st order) " Comfortable
ESE370: Circuit-Level Modeling, Design, and Optimization for Digital Systems
ESE370: Circuit-Level Modeling, Design, and Optimization for Digital Systems Lec 6: September 18, 2017 MOS Model You are Here: Transistor Edition! Previously: simple models (0 and 1 st order) " Comfortable
First-Hand Investigation: Modeling of Semiconductors
perform an investigation to model the behaviour of semiconductors, including the creation of a hole or positive charge on the atom that has lost the electron and the movement of electrons and holes in
Electronic Circuits 1. Transistor Devices. Contents BJT and FET Characteristics Operations. Prof. C.K. Tse: Transistor devices
Electronic Circuits 1 Transistor Devices Contents BJT and FET Characteristics Operations 1 What is a transistor? Three-terminal device whose voltage-current relationship is controlled by a third voltage
Electrical Circuits. Winchester College Physics. makptb. c D. Common Time man. 3rd year Revision Test
Name... Set... Don.... manner~ man makptb Winchester College Physics 3rd year Revision Test Electrical Circuits Common Time 2011 Mark multiple choice answers with a cross (X) using the box below. I A B
4.2.1 Current, potential difference and resistance Standard circuit diagram symbols. Content. Key opportunities for skills development WS 1.
4.2 Electricity Electric charge is a fundamental property of matter everywhere. Understanding the difference in the microstructure of conductors, semiconductors and insulators makes it possible to design
Current mechanisms Exam January 27, 2012
Current mechanisms Exam January 27, 2012 There are four mechanisms that typically cause currents to flow: thermionic emission, diffusion, drift, and tunneling. Explain briefly which kind of current mechanisms
Contents CONTENTS. Page 2 of 47
J. A. Hargreaves Lockerbie Academy June 2015 Contents CONTENTS Contents... 2 CHAPTER 7 CONDUCTORS, SEMICONDUCTORS AND INSULATORS... 4 Summary of Content... 4 Summary of this chapter- notes from column
2. Q. 1 to 5 are Very short Answer type questions (1 Mark each. ) 3. Q. 6 to 12 are short Answer type questions. (2 Marks each. )
1. All questions are compulsory. 2. Q. 1 to 5 are Very short Answer type questions (1 Mark each. ) 3. Q. 6 to 12 are short Answer type questions. (2 Marks each. ) 4. Q. 13 to 24 are short answer questions
REVISED HIGHER PHYSICS REVISION BOOKLET ELECTRONS AND ENERGY
REVSED HGHER PHYSCS REVSON BOOKLET ELECTRONS AND ENERGY Kinross High School Monitoring and measuring a.c. Alternating current: Mains supply a.c.; batteries/cells supply d.c. Electrons moving back and forth,
Stepwise Solution Important Instructions to examiners:
(ISO/IEC - 700-005 Certified) WINTER 0 EXAMINATION Subject Code: 70 Model Answer (Applied Science- Physics) Page No: 0/5 No. Sub. Important Instructions to examiners: ) The answers should be examined by
3C3 Analogue Circuits
Department of Electronic & Electrical Engineering Trinity College Dublin, 2014 3C3 Analogue Circuits Prof J K Vij jvij@tcd.ie Lecture 1: Introduction/ Semiconductors & Doping 1 Course Outline (subject
PHY 205 Final Exam 6/24/2009 Second Semester2008 Part 1.
Part 1. Please read each question carefully. Each question worth s 1 point. or the following questions, please circle the correct answer. 1. Which one of the following statements concerning the index of
Semiconductors & LEDs
Semiconductors & LEDs Day 37, Phys 2130 Questions? Semiconductors &LEDs Next up: EPR, Entanglement, Bell, Bound State Sim.. Many Wells 2 1 In solid, `10 22 atoms/cm 3, many!! electrons, and levels countless
Resistance Learning Outcomes
Resistance Learning Outcomes Define resistance and give its unit. Solve problems about resistance. State Ohm s Law. HL: Derive the formulas for resistors in series and parallel. Solve problems about resistors
Session 0: Review of Solid State Devices. From Atom to Transistor
Session 0: Review of Solid State Devices From Atom to Transistor 1 Objective To Understand: how Diodes, and Transistors operate! p n p+ n p- n+ n+ p 2 21 Century Alchemy! Ohm s law resistivity Resistivity
CBSE Examination Paper
CBSE Examination Paper Time allowed : 3 hours Maximum marks: 70 General Instructions: Same as CBSE Examination Paper SET I 1. Using the concept of force between two infinitely long parallel current carrying
Standard circuit diagram symbols Content Key opportunities for skills development
4.2 Electricity Electric charge is a fundamental property of matter everywhere. Understanding the difference in the microstructure of conductors, semiconductors and insulators makes it possible to design
12/10/09. Chapter 18: Electrical Properties. View of an Integrated Circuit. Electrical Conduction ISSUES TO ADDRESS...
Chapter 18: Electrical Properties ISSUES TO ADDRESS... How are electrical conductance and resistance characterized? What are the physical phenomena that distinguish? For metals, how is affected by and
PHYSICS (Theory) Time Allowed: 3 hours Maximum Marks: 70
Sample Paper (CBSE) Series PHY/SP/1B Code No. SP/1-B PHYSICS (Theory) Time Allowed: hours Maximum Marks: 70 General Instructions: (i) (ii) (iii) (iv) (v) All questions are compulsory. This question paper
Resistance Learning Outcomes. Resistance Learning Outcomes. Resistance
Resistance Learning Outcomes Define resistance and give its unit. Solve problems about resistance. State Ohm s Law. HL: Derive the formulas for resistors in series and parallel. Solve problems about resistors
PHYSICS ORDINARY LEVEL MONDAY, 17 JUNE MORNING 9.30 TO AN ROINN OIDEACHAIS AGUS EOLAÍOCHTA LEAVING CERTIFICATE EXAMINATION, 2002
M 35 AN ROINN OIDEACHAIS AGUS EOLAÍOCHTA LEAVING CERTIFICATE EXAMINATION, 2002 PHYSICS ORDINARY LEVEL MONDAY, 17 JUNE MORNING 9.30 TO 12.30 Answer three questions from section A and five questions from
Electroscope Used to are transferred to the and Foil becomes and
Electricity Notes Chapter 17 Section 1: Electric Charge and Forces Electric charge is a variety of independent all with one single name. Electricity is related to, and both (-) and (+) carry a charge.
PHYSICS QUESTION PAPER CLASS-XII
PHYSICS QUESTION PAPER CLASS-XII Time : 3.00 Hours] [Maximum Marks : 100 Instructions : There are four sections and total 60 questions in this question paper. ( 1) (2) All symbols used in this question
Electron Theory of Charge. Electricity. 1. Matter is made of atoms. Refers to the generation of or the possession of electric charge.
Electricity Refers to the generation of or the possession of electric charge. There are two kinds of electricity: 1. Static Electricity the electric charges are "still" or static 2. Current Electricity
ECE321 Electronics I
ECE321 Electronics I Lecture 4: Physics of Semiconductor iodes Payman Zarkesh-Ha Office: ECE Bldg. 230B Office hours: Tuesday 2:00-3:00PM or by appointment E-mail: pzarkesh.unm.edu Slide: 1 Review of Last