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In a meter bridge the balancing length r...

In a meter bridge the balancing length rom the left end (standard resistance of `1Omega` is in the right gap) is found to be 20 cm . The value of the unkown resistance is

A

`0.8 Omega`

B

`0.5 Omega`

C

`0.4 Omega`

D

`0.25 Omega`

Text Solution

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The correct Answer is:
D
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