Several questions about the direction of induced current. In all the parts of th

Question

Several questions about the direction of induced current. In all the parts of this question, the same initial situation holds, shown in the figure. In the heavy loop there is a clockwise current. Something about the arrangement is changing, and a current may or may not be induced in the lighter loop as a result. For each part, specify whether the induced current runs clockwise, counterclockwise, or if no current is induced at all. The current in the heavy loop is increased, The heavy loop is pulled away to the left, The heavy loop is rotated: its top side is lifted and the bottom is sunk so that the loop lies in a plane perpendicular to the page, and the current is coming out of the page at the left, running over the top from left to right, and diving into the page on the right, The heavy loop is cut so the current stops flowing, The heavy loop and its current is unchanged, but the lighter loop is crushed so it becomes smaller in diameter.

Explanation / Answer

Here,

a) when the current in the loop is increasing

as the flux in the lighter loop will increase.

Using Lenz's law

the current in the lighter loop will be anti counter -clockwise

b)

as the flux in the loop will decrease

Using Lenz's law

the current in the lighter loop will be clockwise

c)

as the flux in the loop will decrease.

Using Lenz's law

the current in the lighter loop will be clockwise

d)

as the flux in the loop will decrease.

Using Lenz's law

the current in the lighter loop will be clockwise

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