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Question

BAR magnet is moving along the axis of a loop & towards it as shown in the figure.

A
VAVB is negative
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B
VAVB is zero
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C
VAVB is positive
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D
No current in the loop
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Solution

The correct option is C VAVB is positive
The field into the loop is increasing towards right. So, the current induced in the loop will be in clockwise direction when viewed from the resistor AB. So, curernt flows from A to B. So, VAVB is positive.

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