AP®︎ Physics C: E&M Unit 8: Notes & Study Guide

Prepare for your quiz, test, or the AP exam with a comprehensive review on Unit 8 of AP Physics C: E&M – Electric Charges, Fields, and Gauss's Law.

Exam weight: 15%–25%
6 Topics

Unit 8: Electric Charges, Fields, and Gauss's Law

How electric charge creates fields, how those fields exert forces, and how Gauss's law connects field and enclosed charge through symmetry.

Begin with Topic 8.1: Electric Charge and Elect...

To review Unit 8, go through each of the 6 topics below.

Everything you actually need to know for your Unit 8 test, pulled directly from the AP® Physics C: Electricity and Magnetism curriculum.

Topic 8.1
~7 min
Review
Electric Charge and Electric Force
Electric Charge and Electric Force
  • What Electric Charge Is
  • Coulomb’s Law
  • Multiple Charges and Superposition
Review
Topic 8.2
~6 min
Review
Conservation of Electric Charge and the Process of Charging
Conservation of Electric Charge and the Process of Charging
  • Conservation of Electric Charge
  • Ways Objects Become Charged
  • Polarization and Induced Charge Separation
Review
Topic 8.3
~6 min
Review
Electric Fields
Electric Fields
  • What an Electric Field Is
  • Superposition and Electric Field Maps
  • Electric Fields of Conductors in Electrostatic Equilibrium
Review
Topic 8.4
~6 min
Review
Electric Fields of Charge Distributions
Electric Fields of Charge Distributions
  • The Electric Field from a Continuous Charge Distribution
  • The General Strategy for Field Integrals
  • Symmetry and What It Tells You Immediately
Review
Topic 8.5
~7 min
Review
Electric Flux
Electric Flux
  • What Electric Flux Is
  • The Area Vector and the Dot Product
  • Electric Flux Through Curved or Nonuniform Surfaces
Review
Topic 8.6
~6 min
Review
Gauss’s Law
Gauss’s Law
  • Gauss’s Law
  • Electric Flux and Gaussian Surfaces
  • Charge Density and Enclosed Charge
Review

Notes

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