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Capcity of a spherical capacitor is C(1)...

Capcity of a spherical capacitor is `C_(1)` when in sphere is charged and outer sphere is earthed and when inner sphere is earthed and outer sphere charged. Then `(C_(1))/(C_(2))` is (a = radius of inner sphere b = radius of outer sphere)

A

1

B

`a/b`

C

`b/a`

D

`(a+b)/(a-b)`

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The correct Answer is:
B
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