1. The square loop of wire of the following figure rotates around the Y-axis by

Question

1. The square loop of wire of the following figure rotates around the Y-axis by an angle of 90° in a counter-clockwise direction from the position shown. The induced current in the loop a) ) increases and flows from point B to point A b) decreases and flows from point B to point A. c) increases and flows from point A to point B d) decreases and flows from point A to point B e) is equal to zero 2. The outer circular loop of the following figure carries a current I that decreases with time. What is the direction of the induced current in the inner loop? a) Counter clockwise c) o e) Cannot tell because the radii are not given b) clockwise d) depends on the magnitude of the current 3. What is the direction of induced current in the loop of the following figure if the current in the given wire increases with time? a) Counter clockwise b) clockwise d) depends on the magnitude of the current c) O e) Cannot tell because the radi are not given

Explanation / Answer

1. .The flux will decrease into the plane hence the current will be induced in a way that it will oppose the change in flux (Lenz's law). Therefore, it will be clockwise A to B. It will increase because the flux is decreasing into the plane

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