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Two resistances are connected in two gaps of a metre bridge. The balance point is 20cm from the zero end. A resistance of`15Omega` is connected in series with the smaller of the two. The null point shifts to 40cm. Then value of the smaller resistance Is:

A

`3Omega`

B

`6Omega`

C

`9Omega`

D

`12Omega`

Text Solution

Verified by Experts

The correct Answer is:
B
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