Changing Magnetic Fields

A stationary magnetic field has no effect on a wire or current-loop,

However, . . . .

A moving or changing magnetic field does produce a current in a current loop or a voltage across the ends of a current loop. This is called electromagnetic induction and the current or voltage is called an induced current or an induced voltage.

Table of Contents

Magnetic Flux

Return to Ch 21, Electromagnetic Induction
(c) Doug Davis, 2000; all rights reserved