12:["$","span","2",{"dangerouslySetInnerHTML":{"__html":""},"className":"whitespace-pre-wrap"}] 19:T461,

4\pi \epsilon_0 a

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4\pi \epsilon_0 (3a)

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Q.A spherical capacitor has inner radius a and outer radius 3a. The capacitance is

Correct Answer: Option A

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