Free AP Physics C lesson

Displacement Current

This AP Physics C: Electricity & Magnetism lesson is designed for AP Physics C self-study. It includes 2 video lessons, 2 practice questions, and an estimated completion time of 15 minutes.

Video lessons

  1. Maxwell's Correction to Ampère's Law (Displacement Current)

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  2. Displacement Current in a Capacitor

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Practice covered

  1. Maxwell added a term to Ampère's Law to account for changing electric fields. The complete Ampère-Maxwell Law is:
  2. While a capacitor is charging, there is no actual current flow between the plates, but a displacement current I_d exists. This displacement current:
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