Library
AP Physics C: Electricity and Magnetism
Got a question wrong? Open the notes for that topic.
Teaching this subject? Everything for the classroom in one place →
- Course & Exam Description
- Revision Sheet
- Syllabus Checklist
- Scheme of Work
- Exam Technique
- Command Words — A3 poster
- Lesson Plans — one page per topic
- Class Mark Book
8. Electric Charges, Fields, and Gauss's Law 23 files
9. Electric Potential 14 files
10. Conductors and Capacitors 17 files
11. Electric Circuits 29 files
12. Magnetic Fields and Electromagnetism 17 files
13. Electromagnetic Induction 22 files
- AP Physics C: Electricity and Magnetism — Question index
- 8.1 Electric Charge and Electric Force
- 8.2 Electric Charge and the Process of Charging
- 8.3 Electric Fields
- 8.4 Electric Fields of Charge Distributions
- 8.5 Electric Flux
- 8.6 Gauss's Law
- 9.1 Electric Potential Energy
- 9.2 Electric Potential
- 9.3 Conservation of Electric Energy
- 10.1 Electrostatics with Conductors
- 10.2 Redistribution of Charge Between Conductors
- 10.3 Capacitors
- 10.4 Dielectrics
- 11.1 Electric Current
- 11.2 Electric Circuits
- 11.3 Resistance, Resistivity, and Ohm's Law
- 11.4 Electric Power
- 11.5 Compound Direct Current Circuits
- 11.6 Kirchhoff's Loop Rule
- 11.7 Kirchhoff's Junction Rule
- 11.8 Resistor-Capacitor (RC) Circuits
- 12.1 Magnetic Fields
- 12.2 Magnetism and Moving Charges
- 12.3 Magnetic Fields of Current-Carrying Wires and the Biot-Savart Law
- 12.4 Ampère's Law
- 13.1 Magnetic Flux
- 13.2 Electromagnetic Induction
- 13.3 Induced Currents and Magnetic Forces
- 13.4 Inductance
- 13.5 Circuits with Resistors and Inductors (LR Circuits)
Topic quizzes
- 8. Electric Charges, Fields, and Gauss's Law
- 9. Electric Potential
- 10. Conductors and Capacitors
- 11. Electric Circuits
- 12. Magnetic Fields and Electromagnetism
- 13. Electromagnetic Induction
Unit tests
- 8. Electric Charges, Fields, and Gauss's Law
- 9. Electric Potential
- 10. Conductors and Capacitors
- 11. Electric Circuits
- 12. Magnetic Fields and Electromagnetism
- 13. Electromagnetic Induction
Mock papers
Course companion
Glossary
Topic handouts
- 8.1 Electric Charge and Electric Force
- 8.2 Electric Charge and the Process of Charging
- 8.3 Electric Fields
- 8.4 Electric Fields of Charge Distributions
- 8.5 Electric Flux
- 8.6 Gauss's Law
- 9.1 Electric Potential Energy
- 9.2 Electric Potential
- 9.3 Conservation of Electric Energy
- 10.1 Electrostatics with Conductors
- 10.2 Redistribution of Charge Between Conductors
- 10.3 Capacitors
- 10.4 Dielectrics
- 11.1 Electric Current
- 11.2 Electric Circuits
- 11.3 Resistance, Resistivity, and Ohm's Law
- 11.4 Electric Power
- 11.5 Compound Direct Current Circuits
- 11.6 Kirchhoff's Loop Rule
- 11.7 Kirchhoff's Junction Rule
- 11.8 Resistor-Capacitor (RC) Circuits
- 12.1 Magnetic Fields
- 12.2 Magnetism and Moving Charges
- 12.3 Magnetic Fields of Current-Carrying Wires and the Biot-Savart Law
- 12.4 Ampère's Law
- 13.1 Magnetic Flux
- 13.2 Electromagnetic Induction
- 13.3 Induced Currents and Magnetic Forces
- 13.4 Inductance
- 13.5 Circuits with Resistors and Inductors (LR Circuits)
- 13.6 Circuits with Capacitors and Inductors (LC Circuits)
Lesson slides
- 8. Electric Charges, Fields, and Gauss's Law
- 9. Electric Potential
- 10. Conductors and Capacitors
- 11. Electric Circuits
- 12. Magnetic Fields and Electromagnetism
- 13. Electromagnetic Induction
Lesson slides
- 8.1 Electric Charge and Electric Force
- 8.2 Electric Charge and the Process of Charging
- 8.3 Electric Fields
- 8.4 Electric Fields of Charge Distributions
- 8.5 Electric Flux
- 8.6 Gauss's Law
- 9.1 Electric Potential Energy
- 9.2 Electric Potential
- 9.3 Conservation of Electric Energy
- 10.1 Electrostatics with Conductors
- 10.2 Redistribution of Charge Between Conductors
- 10.3 Capacitors
- 10.4 Dielectrics
- 11.1 Electric Current
- 11.2 Electric Circuits
- 11.3 Resistance, Resistivity, and Ohm's Law
- 11.4 Electric Power
- 11.5 Compound Direct Current Circuits
- 11.6 Kirchhoff's Loop Rule
- 11.7 Kirchhoff's Junction Rule
- 11.8 Resistor-Capacitor (RC) Circuits
- 12.1 Magnetic Fields
- 12.2 Magnetism and Moving Charges
- 12.3 Magnetic Fields of Current-Carrying Wires and the Biot-Savart Law
- 12.4 Ampère's Law
- 13.1 Magnetic Flux
- 13.2 Electromagnetic Induction
- 13.3 Induced Currents and Magnetic Forces
- 13.4 Inductance
- 13.5 Circuits with Resistors and Inductors (LR Circuits)
- 13.6 Circuits with Capacitors and Inductors (LC Circuits)
Vocabulary lists
- 8. Electric Charges, Fields, and Gauss's Law
- 9. Electric Potential
- 10. Conductors and Capacitors
- 11. Electric Circuits
- 12. Magnetic Fields and Electromagnetism
- 13. Electromagnetic Induction
Flashcards
Weekly vocab tests
- Week 1 · Topic 8 · Electric Charges, Fields, and Gauss's Law
- Week 2 · Topics 8–9 · Electric Charges, Fields, and Gauss's Law, Electric Potential
- Week 3 · Topics 8–11 · Electric Charges, Fields, and Gauss's Law, Electric Potential, Conductors and Capacitors, Electric Circuits
- Week 4 · Topics 11–12 · Electric Circuits, Magnetic Fields and Electromagnetism
- Week 5 · Topic 12 · Magnetic Fields and Electromagnetism
- Week 6 · Topics 8–13 · Electric Charges, Fields, and Gauss's Law, Electromagnetic Induction
Weekly homework
Exercise sheets
- Complete pack — exercise sheets + past papers
- 8 Electric Charges, Fields, and Gauss's Law — Part 1
- 8 Electric Charges, Fields, and Gauss's Law — Part 2
- 9 Electric Potential — Part 1
- 9 Electric Potential — Part 2
- 10 Conductors and Capacitors — Part 1
- 10 Conductors and Capacitors — Part 2
- 11 Electric Circuits — Part 1
- 11 Electric Circuits — Part 2
- 12 Magnetic Fields and Electromagnetism — Part 1
- 12 Magnetic Fields and Electromagnetism — Part 2
- 13 Electromagnetic Induction — Part 1
- 13 Electromagnetic Induction — Part 2
Past papers
- 8.1 Electric Charge and Electric Force
- 8.2 Electric Charge and the Process of Charging
- 8.3 Electric Fields
- 8.4 Electric Fields of Charge Distributions
- 8.5 Electric Flux
- 8.6 Gauss's Law
- 9.1 Electric Potential Energy
- 9.2 Electric Potential
- 9.3 Conservation of Electric Energy
- 10.1 Electrostatics with Conductors
- 10.2 Redistribution of Charge Between Conductors
- 10.3 Capacitors
- 10.4 Dielectrics
- 11.1 Electric Current
- 11.2 Electric Circuits
- 11.3 Resistance, Resistivity, and Ohm's Law
- 11.4 Electric Power
- 11.5 Compound Direct Current Circuits
- 11.6 Kirchhoff's Loop Rule
- 11.7 Kirchhoff's Junction Rule
- 11.8 Resistor-Capacitor (RC) Circuits
- 12.1 Magnetic Fields
- 12.2 Magnetism and Moving Charges
- 12.3 Magnetic Fields of Current-Carrying Wires and the Biot-Savart Law
- 12.4 Ampère's Law
- 13.1 Magnetic Flux
- 13.2 Electromagnetic Induction
- 13.3 Induced Currents and Magnetic Forces
- 13.4 Inductance
- 13.5 Circuits with Resistors and Inductors (LR Circuits)
Tips
Sort the released questions by which law they hinge on — Gauss, Ampère, Faraday — and work them in those groups rather than paper by paper. Choosing the surface or loop well is a pattern you learn by seeing many cases together.
Fix a sign convention for flux and induced current and apply it identically every time. Most lost marks in induction are sign errors, and they come from deciding the convention afresh on each question.
Check answers by limiting case: let a distance go to infinity or a charge go to zero and see whether the expression still makes sense. The rubric does not award it, but it catches errors before you commit.