If the magnetic flux through a certain region is changing with time:
A)energy must be dissipated as heat
B)an electric field must not exist at the boundary
C)a current must flow around the boundary
D)an emf must exist around the boundary
E)a magnetic field must exist at the boundary

Question

Quizplus · Accepted Answer

According to Faraday's law of electromagnetic induction, a changing magnetic flux through a surface will induce an electromotive force (emf) around the boundary of the surface. Therefore, choice D is the correct option, as an emf must exist around the boundary.

If the Magnetic Flux Through a Certain Region Is Changing