Electricity & Magnetism Path
Electricity and magnetism are really one subject — this path shows you how. Start with charge and fields, master circuits with Ohm's and Kirchhoff's laws, then see magnetism emerge and finally unite the two in electromagnetic induction.
Module 1: Charge and fields
Charge, Coulomb's law, and the electric field — the invisible landscape charges create.
Learn
- Electric Charge — The Basics: Positive, Negative and Conservation
- Coulomb's Law — F = kq₁q₂/r² Explained
- Electric Field — E = F/q, Field Lines and Worked Examples
Practice
Module 2: Circuits
Current, voltage, resistance, and the laws that solve any circuit.
Learn
- Ohm's Law — V = IR Explained with Circuits and Examples
- Series vs Parallel Circuits — Rules, Formulas and Examples
- Kirchhoff's Laws — KCL and KVL with Worked Examples
Practice
Module 3: Magnetism
Magnetic fields, forces on moving charges, and how motors work.
Learn
Practice
Module 4: Electromagnetic induction
Changing magnetic fields create electric fields — generators, transformers, and induction.
Learn
Practice
Module 5: Electricity in the real world
How it all connects: power grids, household wiring, and real devices.