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A wire of resistance 12Omega is stretche...

A wire of resistance `12Omega` is stretched uniformly till its length becomes three times original length. The change in resistance of wire is

A

`96 Omega`

B

`108 Omega`

C

`150Omega`

D

`208 Omega`

Text Solution

Verified by Experts

The correct Answer is:
A
`(R_(2))/(R_(1))=((l_(2))/(l_(1)))^(2)`
`:.R_(2)=9xx12=108 Omega`
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