In a potentiometer of 10 wires, the balance point is obtained on the 7 th wire. To shift the balance point to 9 th wire, we should
Text Solution
Verified by ExpertsThe correct answer is:
D
To shift the balance point on higher length, the potential gradient of the wire is to be decreased. The same can be obtained by decreasing the current of the main circuit, which is possible by increasing the resistance in series of potentiometer wire.
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