Two closed loops A and C are close to a long wire carrying a current I. (See the

Question

Two closed loops A and C are close to a long wire carrying a current I. (See the figure (Figure 1) .)
Part A
Find the direction (clockwise or counterclockwise) of the current induced in the loop if is steadily decreasing .

The current in the loop is counterclockwise.
The current in the loop is clockwise.
The current in the loop is zero.
Part B
Find the direction (clockwise or counterclockwise) of the current induced in the loop The current in the loop C is counterclockwise. if I is steadily increasing .
The current in the loop is counterclockwise.
The current in the loop is clockwise.
The current in the loop is zero.

http://session.masteringphysics.com/problemAsset/1264160/3/yg.21.55.jpg

Explanation / Answer

Using Lenz's law, increase in flux causes reverse voltage generation. a) The current in the loop is clockwise. b) The current in the loop is counterclockwise.

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