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Resistance in the two gaps of a meter br...

Resistance in the two gaps of a meter bridge are `10 ohm` and `30 ohm` respectively. If the resistances are interchanged the balance point shifts by

A

33.3 cm

B

66.67 cm

C

25 cm

D

50 cm

Text Solution

Verified by Experts

The correct Answer is:
D
`10/30 = I_(1)/(100 - l_(1)) rArr 3l_(1)`
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