In a potentiometer of 10 wires, the balance point is obtained on the 7<sup>th</sup> wire. To shift the balance point to 9th wire, we should

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Q. In a potentiometer of 10 wires, the balance point is obtained on the 7^th wire. To shift the balance point to 9th wire, we should

(A) decrease resistance in the main circuit.
(B) increase resistance in the main circuit.
(C) decrease resistance in series with the cell whose emf is to be measured.
(D) increase resistance in series with the cell whose emf is to be determined.

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✅ Correct Answer: (D) increase resistance in series with the cell whose emf is to be determined.

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