Question

The phenomenon of electromagnetic induction is:

• A. The process of charging a body.
• B. The process of generating magnetic field due to a current passing through a coil.
• C. Producing induced current in a coil due to change in flux linked with the coil.
• D. The process of rotating a coil of an electric motor.

Answer 1

The correct option is C

Producing induced current in a coil due to change in flux linked with the coil.

According to electromagnetic induction, whenever there is a change in the number of magnetic field lines linked with a conductor, an electromotive force (emf) is developed between the ends of the conductor. This phenomenon is called the electromagnetic induction. The number of magnetic field lines linked with the conductor is called the magnetic flux linked with the conductor. In other words, whenever there is a change in the magnetic flux linked with a coil, an emf is induced. The magnitude of emf induced is directly proportional to the rate of change of flux linked with the coil.