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    • the best instrument for accurate measurement of emf of a cell is ? a. wheat stone bridge b. ammeter c. a potentiometer d. voltmeter
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    the best instrument for accurate measurement of emf of a cell is ? a. wheat stone bridge b. ammeter c. a potentiometer d. voltmeter

    Chen 21st Oct, 2019
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    Answer (1)
    Manidipa Kundu Student Expert 21st Oct, 2019

    hello,

    answer is potentiometer.

    as a voltmeter  draws some current in cell it can not givethe accurate rating. a potentiometer is the best option as during the measurement by potentiometer no current flows through it.

    hope it would help.

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