A potentiometer is connected between a and b, the balancing length of the potentiometer wire is 300 cm. on connecting the same potentiometer between a and c, the balancing lent is 100 cm. calculate the ratio of e1 and e2.
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When potentiometer is connected between A & B ,
E1 ∝300
when connected between A & C,
E1-E2 ∝ 100
dividing both
E1/E1-E2 = 3/1
E1/E2 = 3/2
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