Question

What is meant by a changing electric field or changing magnetic field? ​

Answer 1

Explanation:

A changing magnetic field produces a changing electric field. A changing magnetic field is the one whose number of magnetic lines of force change with time across a given area held normally to them whereas in case of uniform, the number remains constant and does not change with time.

Answer 2

Answer:

h

Inductance of a Coil Rotating in a Magnetic Field —

As the coil rotates in the magnetic field, the induction flux through the coil changes and a time–varying current is induced in the coil. If an electric current passes through a coil, it generates a magnetic field around the coil. The magnetic flux of this field is proportional to the induced current.