It is required to measure the true open circuit e.m.f. of a battery. T – McqOptions

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1.	It is required to measure the true open circuit e.m.f. of a battery. The best device is
A.	d.c. voltmeter
B.	ammeter and a known resistance
C.	d.c. potentiometer
D.	none of the above
Answer» D. none of the above

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