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A cylindrical conductor of length l and ...

A cylindrical conductor of length l and uniform area of cross section A has resistance R. Another conductor of length 2l and resistance R of the same material has an area of cross section

A

`A/2`

B

`(3A)/2`

C

`2A`

D

`3A`

Text Solution

Verified by Experts

Here `R=(rho l)/A=(rho(2l))/A. implies A.=2A`
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