Unit 12 · Magnetism and Electromagnetism

Chapter 12.1

Magnetic Fields and the Force on a Moving Charge

Cut a bar magnet in half and you get two complete magnets, never a lone north. And the field it makes pushes a moving charge sideways — never forward, never back.

in preparation · lesson 13 of 27

By the end

  1. 01Describe magnetic fields as dipole fields with closed field lines, from bar magnets to Earth
  2. 02Explain permanent and induced magnetism by the alignment of atomic dipoles
  3. 03Compute the magnetic force on a moving charge and find its direction with the right-hand rule
  4. 04Analyze circular motion in a field, crossed electric and magnetic fields, and the Hall effect

In unit 12

  1. 12.1Magnetic Fields and the Force on a Moving Charge
  2. 12.2Magnetism from Currents
  3. 12.3Electromagnetic Induction and Faraday's Law
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