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The capacitance of a metallic sphere wil...

The capacitance of a metallic sphere will be `1muF`, if its radius is nearly

A

9 km

B

10 m

C

1.11 m

D

1.11 cm

Text Solution

Verified by Experts

The correct Answer is:
A
Since, `C=4piepsilon_0R`
`implies R = C/(4pi epsilon_0)`
`=1 xx10^(-6)xx 9 xx10^9 = 9 xx10^3 m`
`=9km`
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