💡ap physics c: e&m review

F_B = ∫I(dℓ × B)

Written by the Fiveable Content Team • Last updated August 2025
Verified for the 2027 exam
Verified for the 2027 examWritten by the Fiveable Content Team • Last updated August 2025

Definition

The equation for the magnetic force on a current-carrying conductor, where F_B is the magnetic force, I is the current, dℓ is an infinitesimal length element of the conductor, and B is the magnetic field.

AP course connection

Topic 13.3: 13.3 Induced Currents and Magnetic Forces

Unit 13

"F_B = ∫I(dℓ × B)" also found in: