Question

Define induced EMF.

Answer 1

1. It can be defined as the generation of a potential difference in a coil due to the changes in the magnetic flux through it. In simpler words, electromotive force or EMF is said to be induced when the flux linking with a conductor or coil changes.

Electromotive forces can be induced in two different ways

1. The first way involves the placement of an electric conductor in a magnetic field that is varying.
2. The second way involves the placement of a constantly moving conductor in a magnetic field that is static in nature.

The applications of induced emf are,

1. It is used in generators
2. It is used in galvanometers
3. It is used in transformers