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Measurements and Instrumentation

Q1: 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

B 0.75 V

C 13.9 V

D 7.45 V

ANS:A - 1.39 V

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