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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
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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