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The potential gradient of a potentiomete...

The potential gradient of a potentiometer can be increased by which of the following operation?

A

By increasing the area of cross-section of the potentiometer wire.

B

By decreasing the area of cross-section of the potentiometer wire.

C

By decreasing the current through it.

D

By using a wire of material of low specific resistance. when A is decreased, k will increase.

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