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In meter bridge experiment if, resistanc...

In meter bridge experiment if, resistance `S` in resistance box `=300Omega` then the balanced length is found to be `25.0cm` from end `A`. The diameter of unknown wire is `1mm` and length of unknown wire is `31.4cm`. The specific resistivity of the wire should be

A

`2.5xx10^(-4)Omega-m`

B

`3.5xx10^(-4)Omega-m`

C

`4.5xx10^(-4)Omega-m`

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
A
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