Free AP Physics C lesson

Magnetic Materials

This AP Physics C: Electricity & Magnetism lesson is designed for AP Physics C self-study. It includes 3 video lessons, 3 practice questions, and an estimated completion time of 20 minutes.

Video lessons

  1. Magnetic Properties of Materials

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  2. Ferromagnetism

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  3. Magnetic Field Lines and Magnetic Flux

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Practice covered

  1. When a magnetic material is inserted into a solenoid, the magnetic field is modified by the relative permeability K_m (also written mu_r). The new field is:
  2. Ferromagnetic materials (like iron) can retain magnetization after an external field is removed. This property is called:
  3. Unlike electric field lines, magnetic field lines:
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