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A standard cell of 1.0185 V is used with a slide wire potentiometer. The balance was obtained at 60 cm. When an unknown emf was connected, the balance was obtained at 82 cm. The magnitude of unknown emf is | |
A. | 1.39 V [Correct Answer] |
B. | 0.75 V [Wrong Answer] |
C. | 13.9 V [Wrong Answer] |
D. | 7.45 V [Wrong Answer] |
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