AP Physics C: E&M practice problems, unit by unit
Free AP Physics C: Electricity and Magnetism practice problems for every unit, Units 8 to 13, written by our tutors in the style of the exam. Each question has a hint and a worked solution you reveal one step at a time, and each unit ends with a calculus-based free-response question with a points-based scoring guide.
On this page
Practice by unit
- Unit 8: Electric charges, fields and Gauss's lawCoulomb's law, electric fields of point charges and continuous distributions, electric flux and Gauss's law. 8 questions and a free-response question.
- Unit 9: Electric potentialElectric potential and potential energy, potential of point charges and charge distributions, and the link E = −dV/dx. 8 questions and a free-response question.
- Unit 10: Conductors and capacitorsConductors in electrostatic equilibrium, capacitance, energy stored, dielectrics, and capacitors in series and parallel. 8 questions and a free-response question.
- Unit 11: Electric circuitsCurrent, resistance and power, series and parallel circuits, Kirchhoff's rules, internal resistance, and RC circuits. 8 questions and a free-response question.
- Unit 12: Magnetic fields and electromagnetismMagnetic forces on moving charges and currents, fields of wires and solenoids, the Biot-Savart law and Ampère's law. 8 questions and a free-response question.
- Unit 13: Electromagnetic inductionMagnetic flux, Faraday's and Lenz's laws, motional emf, inductance, energy in inductors, and RL circuits. 8 questions and a free-response question.
Ready for a full test? Take the free AP Physics C: E&M mock exam: every unit, timed, marked as you go.
How it works
- Try first. Type your answer or pick an option, and it is marked straight away.
- Stuck? Open the hint before the solution. Then reveal the worked solution one step at a time, and stop as soon as you can finish it yourself.
- Mark your free-response answers with the scoring guide, point by point, the way exam readers do.
- Track your progress. Each unit above shows how many questions you have done, saved on this device.
- Share it with your tutor. Every unit page has a button that sends your score on WhatsApp. Tutors: send a unit link as homework, and ask for the score back.
The AP Physics C: E&M exam format
| Section | Questions | Time | Score |
|---|---|---|---|
| Section I: multiple choice | 42 questions | 85 minutes | 50% |
| Section II: free response | 4 questions | 95 minutes | 50% |
This is the format from the May 2027 exam onwards (it was 40 multiple-choice questions in 80 minutes and 100 minutes for free response). The four free-response questions are one of each type: mathematical routines, translation between representations, experimental design and analysis, and qualitative/quantitative translation. A calculator is allowed throughout.
Frequently asked questions
Are these AP Physics C: E&M questions from real exams?
No. They are original questions written by our tutors in the style of the AP Physics C: E&M exam, so we can give full worked solutions. For real exam questions, use the official AP Physics C: E&M past papers, which we link to with their scoring guidelines.
Do I need an account?
No. Everything is free and there is no sign-up. Your progress is saved in your own browser on this device, and you can reset it on any unit page.
How should I use these alongside past papers?
Use the unit practice while you learn each topic, then move to timed past papers once you have covered most of the course. When a past paper question goes wrong, come back to that unit's questions.
Why do the units start at 8?
College Board numbers the E&M units 8 to 13, continuing on from the seven units of AP Physics C: Mechanics. We use the same numbers as your teacher and textbook.
Is there an AP Physics C: E&M past papers page?
Not yet on our site. College Board publishes past free-response questions on AP Central, and our practice here follows the same four question types.