Question

If the magnetic flux through a certain region is changing with time: _________

a. a current must flow around the boundary
b. a magnetic field must exist at the boundary
c. an electric field must not exist at the boundary
d. an emf must exist around the boundary energy must be dissipated as heat

Answer 1

Answer:

It's option d. an emf must exist around the boundary

Explanation:

The Faraday's law states that an emf must exist around the boundary whenever there is a change occurring in the flux of a magnetic field.