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The electrical potential on the surface ...

The electrical potential on the surface of a sphere of radius 'r' due to a charge` 3 xx 10^(-6) C `is 500 V. The intensity of electric field on the surface of the sphere is
`[(1)/( 4 pi in_0 ) = 9 xx 10^9 Nm^2 C^(-2)] `( in NC-1):

A

`lt 10`

B

`gt 20`

C

Between 10 and 20

D

`gt 5`

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The correct Answer is:
A
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