A calibrated potentiometer is used to measure the e.m.f. of a cell because the

a

internal resistance of a cell is small compared with that of the potentiometer

b

potentiometer has a linear scale

c

potentiometer takes no current from the cell

d

resistance of the potentiometer is less than that of a voltmeter

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Correct Option
c

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Discussions (7)

agadido
3 years ago

EVERYONE SHUD DISLIKE THIS
MYSCHOOL IS CORRECT
ITS C

alhajibasic
7 years ago

the correct answer is (B)

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