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Discussion

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

Answer: A

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