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The electrical resistance of a mercury c...

The electrical resistance of a mercury column in a cylindrical container is `R` the mercury is poured into another cylindrical container with half the radius of cross-section. The resistance of the mercury column is

A

`R`

B

`2R`

C

`16R`

D

`5R`

Text Solution

Verified by Experts

The correct Answer is:
C
`R=(rhol)/(A),V=Al`
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