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Diameter of a spherical conductor is 1 m...

Diameter of a spherical conductor is 1 meter. What is its capacity ?

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Here `r = 1//2 m = 0.5 m, C = ?`
`C = 4pi in_(0) r = (0.5)/(9xx10^(9))" farad "= 55.5xx10^(-12)" farad "= 55.5 pF`
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