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A small mercury froop has acapacitance 1...

A small mercury froop has acapacitance `1muF`. If eight such identical drops are combined to a big drop, then its capacitance is

A

`8muF`

B

`2muF`

C

`4muF`

D

`1muF`

Text Solution

Verified by Experts

The correct Answer is:
B
Given, capacitance of mercury drop, `C=1muF`
The arrangement of 8 drops capacitance will be shown in figure

`:." C"_("eq")=1/2+1/2+1/2+1/2=4/2rArrC_("eq")=4/2=2muF`
Therefore, capacitance of big drop is `2muF`.
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