Two loops of wire are arranged so that a changing current in one,the primary,will induce a current in the other,the secondary.The secondary loop has twice as many turns as the primary loop.As long as the current in the primary is steady at 3.0 A,the current in the secondary will be
A)3.0 A.
B)6.0 A.
C)1.5 A.
D)zero.

Question

Quizplus · Accepted Answer

The current in the secondary loop will be induced only if there is a change in the magnetic field, which is caused by a changing current in the primary loop. Since the current in the primary is steady, there will be no induced current in the secondary loop.

Two Loops of Wire Are Arranged So That a Changing