An insulated metal sphere of 20 cm diameter is charged by rubbing with charges 2

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An insulated metal sphere of 20 cm diameter is charged by rubbing with charges 2 × 10-8 C. Potential developed will be

Options:

A . 900 V.

B . 0 V.

C . 200 V.

D . 1800 V.

Answer: Option D

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