Question

can we change the magnetic flux linked with a circuit without providing a relative motion between the magnet and circuit?

Answer 1

Yea...we can

For small circuit we can use variable resistance and in big circuit we can use rheostat to change the resistance..

And when resistance will vary; current will vary as a result magnetic flux will also be changed.

Hope helped.

Answer 2

Answer:

There are therefore three ways an emf can be induced in a loop:

• Change the magnetic field.
• Change the area of the loop.
• Change the angle between the field and the loop.