Physics, asked by jcgoyat, 1 month ago

5 V ? 20. A spark passes in air when the potential gradient at the surface of charged conductor is 4 X 106 Vm-1. What must be the radius of an insulated metal sphere which can be charged to a potential of 4 x 106 V before sparking into air?

Answers

Answered by devff210

0

Answer:

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Explanation:

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