When the supply voltage is switched ____, the current through an inductor ( ____ of wire ) increases, the magnetic field around it ____ and, since this is a ____ magnetic field, there is an ____ emf. The induced emf ____ the ____ in current so is directed oppositely to the emf of the ____. When the supply is switched ____, the current decreases and the magnetic field ____, the changing magnetic field ____ an emf that opposes the ____ that caused it. In this case, the induced emf does work to ____ the current. The ____ required to do this work comes from the magnetic ____ energy built up and stored in the ____ ____ that was established when the circuit was switched on.

Electromagnetic induction Part 2

by
Print
Embed

Leaderboard

Visual style

Options

Switch template

Continue editing: ?