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Question

Capacitance (in F) of a spherical conductor with radius 1 m is :

A
1.1×1010
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B
106
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C
9×109
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D
103
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Solution

The correct option is A 1.1×1010
Capacitance of spherical conductor =4πϵ0a
where a is radius of conductor.
Therefore, C=19×109×1=19×109
=0.11×109F=1.1×1010F

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