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A wire of lenth L is drawn such that its...

A wire of lenth `L` is drawn such that its diameter is reduced to half of its original diamter. If the initial resistance of the wire were `10 Omega`, its new resistance would be

A

`40 Omega`

B

`80 Omega`

C

`120 Omega`

D

`160 Omega`

Text Solution

Verified by Experts

The correct Answer is:
D

Area becomes one fourth and length four times the original value.
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