It is required to measure the true open circuit e.m.f. of a battery. The best de

MCQ Practice

It is required to measure the true open circuit e.m.f. of a battery. The best device is

Subject: Electrical EngineeringTopic: Electrical Machine Design

D.C. voltmeter

Ammeter and a known resistance

D.C. potentiometer

None of the above

Correct Answer: C