Questions
In a potentiometer, the balancing length of a cell of emf 10 volt is 120 cm. What will be the balancing length of potentiometer wire for a 8 volt cell?
detailed solution
Correct option is D
For potentiometer the balancing length is proportional to emf in the secondary circuit810=x120⇒x=96 cmTalk to our academic expert!
Similar Questions
An Edison cell and a Iead accumulator when placed in series produce a null deflection at a distance 204 cm in a potentiometer. But when placed in opposition produces null deflection. at a distance of 36 cm. If the e.m.f. of Edison cell is 1 . 4 V, the e.m.f. of lead accumulator is
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