Think of a closed rectangular loop of wire around the edge of this page. A magnetic field perpendicular to the page points upward and increases in strength in a certain time. During this time the conventional current induced in the loop will be
A) clockwise.
B) counterclockwise.
C) zero.
D) continually changing direction.

Question

Quizplus · Accepted Answer

According to Lenz's Law, the induced current will oppose the change in magnetic flux. Since the magnetic field is increasing upward, the induced current will create a magnetic field pointing downward, resulting in a clockwise current.

Think of a Closed Rectangular Loop of Wire Around the Edge