Free AP Physics C lesson

Biot-Savart Law

This AP Physics C: Electricity & Magnetism lesson is designed for AP Physics C self-study. It includes 3 video lessons, 4 practice questions, and an estimated completion time of 25 minutes.

Video lessons

  1. The Biot-Savart Law

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  2. The Magnetic Field Due to a Long Straight Current-Carrying Wire

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  3. The Magnetic Force Between Two Parallel Current-Carrying Wires

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Practice covered

  1. The Biot-Savart Law gives the magnetic field dvecB from a current element Idvecl as:
  2. The magnetic field at perpendicular distance r from a long straight wire carrying current I is:
  3. A long straight wire carries 15 A. Calculate the magnetic field strength (in tesla) at a perpendicular distance of 0.050 m from the wire. (Use mu_0 = 4pi times 10^-7 T·m/A)
  4. Two long parallel wires carrying currents in the same direction will:
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