Two identical concentric loops are arranged as shown in the diagram below. Loop 1 initially carries a steady current driven by the power supply shown.

Suppose that when we turn off the power supply, it takes a small but finite time for the current to decay to zero in loop 1. In what direction does the current induced in loop 2 flow during this time interval?
A) Clockwise.
B) Counterclockwise.
C) No current flows in loop 2.
D) One needs more information to answer.

Question

Two identical concentric loops are arranged as shown in the diagram below. Loop 1 initially carries a steady current driven by the power supply shown.

Suppose that when we turn off the power supply, it takes a small but finite time for the current to decay to zero in loop 1. In what direction does the current induced in loop 2 flow during this time interval?
A) Clockwise. 
B) Counterclockwise. 
C) No current flows in loop 2. 
D) One needs more information to answer.

Quizplus · Accepted Answer

The Answer of Two identical concentric loops are arranged as shown in the diagram below. Loop 1 initially carries a steady current driven by the power supply shown.

Suppose that when we turn off the power supply, it takes a small but finite time for the current to decay to zero in loop 1. In what direction does the current induced in loop 2 flow during this time interval?
A) Clockwise. 
B) Counterclockwise. 
C) No current flows in loop 2. 
D) One needs more information to answer.

Two Identical Concentric Loops Are Arranged as Shown in the Diagram