Question

A single circular loop of wire in the plane of the page is perpendicular to a uniform magnetic field B directed out of the page. If the magnitude of the magnetic field is decreasing, then the induced current in the wire is

Answer 1

A) directed upward out of the paper
B) directed downward into the paper
C) Clockwise around the loop
D) Counterclockwise around the loop
E) Zero (No current induced)

Answer 2

If the original B is into the page and decreasing this means the changing B is out of the page.

This would induce a clockwise current in the loop (Lenz's law)

So answer is C clockwise around the loop.

Answer 3

thats what I thought too, but the answer is D

Answer 4

Really? Odd.