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A wire of length 5m and radius 1mm has a...

A wire of length 5m and radius 1mm has a resistance of 1 ohm . What length of the wire of the same material at the same temperature and of radius 2mm will also have a resistance of 1 ohm

A

1.25 m

B

2.5 m

C

10 m

D

20 m

Text Solution

Verified by Experts

The correct Answer is:
D
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