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In a metere bridge, the balance length f...

In a metere bridge, the balance length from left end (standard resistance of `1 Omega` is in theright gap) is found to be 20cm the length of Resistance in left gap is `(1)/(2)m` and radiusis 2mm its specific resistance is

A

`pi xx 10^(-6) ohm-m`

B

`2pi xx 10^(-6) ohm-m`

C

`(pi)/(2) xx 10^(-6) ohm-m`

D

`3pi xx 10^(-6) ohm-m`

Text Solution

Verified by Experts

The correct Answer is:
B
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