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A resistance of a metal wire of length A...

A resistance of a metal wire of length AB is `2Omega`. Another wire of length PQ of te same metal with twice the diameter of the wire AB is found to hage the same resistance of `2Omega`. What is the length of PQ?

A

`4 AB`

B

`2AB`

C

`1 AB`

D

`6 AB`

Text Solution

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The correct Answer is:
A
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