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Q.

In a potentiometer of 5 wires, the balance point is obtained on the 3rd wire. To shift the balance point to the 4th wire,

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a

current of the main circuit is to be increased.

b

None of the above

c

the shifting is not possible

d

current of the main circuit is to be decreased.

answer is A.

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Detailed Solution

To shift the balance point of a potentiometer to a higher length, the potential gradient of the wire is to be decreased. This can also be achieved by decreasing the current of the main circuit. So, this is a hue statement.

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