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The electrostatic potential inside a cha...

The electrostatic potential inside a charged spherical ball is given by `phi=ar^2+b` where r is the distance from the centre, a, b are constants.

A

`-6aepsilon_0r`

B

`24piaepsilon_0r`

C

`-6aepsilon_0`

D

`24piaepsilon_0`

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The correct Answer is:
B
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