Question

the basic cause of induced emf

Answer 1

The induced electric fields and the changing magnetic fields have a common cause. For a moving conductor in an unchanging magnetic field, the EMF is caused by the magnetic field exerting a force on moving charges.

Answer 2

Answer:

The Basic cause of Induced EMF

Explanation:

You need to keep in mind that EMF refers to Electro Motive Force.

This is a type of force that is related to moving a unit charge within a conductor from one point to another.

Now if it is about moving charges, then it has three causes for induced EMF within a circuit in a conductor.

1. If the conductor is stationary, then it is obvious that the Induced EMF is caused on account of electric fields. Electric fields are always present on account of change in the magnetic field (as magnetic field and electric field are related). So It is this changing magnetic field and electric field that causes Induced EMF.

2. In case the conductor is not stationary, i.e it is in motion, then the again if the magnetic field is stationary (not changing), then the EMF is induced on account of force that is exerted by the presence of force due to the charge that is in motion.

3. For same condition, if the conductor is in motion, but this time the magnetic field is altering or changing, then the EMF is induced because of the varying magnetic force.