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Electricity & Magnetism · Physics

Understand charges, fields, circuits, and magnetism.

Build intuition for electric forces and circuits, then connect them to magnetism and electromagnetic induction through guided nano-lessons.

Electricity & Magnetism topics

Explore the chapters in this track

Start with Electricity, then move into Magnetism, and lock it in with practice.

Chapter A
Electricity
Learn how charge creates forces and fields, and how circuits move energy.
  • Electric charge and Coulomb’s Law
  • Electric field and field lines
  • Electric potential and voltage
  • Capacitance (intro)
  • Current, resistance, and Ohm’s Law
  • DC circuits and Kirchhoff’s rules
Start Electricity Build the foundation for E&M.
Chapter B
Magnetism
See how moving charges create magnetic effects and how induction generates electricity.
  • Magnetic forces on charges and currents
  • Magnetic fields and field sources
  • Biot–Savart and Ampère’s Law (conceptual)
  • Magnetic flux
  • Faraday’s Law of induction
  • Lenz’s Law
Start Magnetism Connect motion, fields, and induction.
Practice
Practice & Exercises
Build fluency with field reasoning, circuit analysis, and induction problems.
  • Field direction and magnitude drills
  • Potential/voltage concept checks
  • Kirchhoff loop and node practice sets
  • Magnetic force and right-hand rule drills
  • Induction and flux-change problems
Open practice sets Lock in the ideas with repetition.