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Consider a solid cube made up of insulat...

Consider a solid cube made up of insulating material having a uniform volume charge density. Assuming the electrostatic potential to be zero at infinity, the ratio of the potential at a corner of the cube to that at the centre will be

A

`1:1`

B

`1:2`

C

`1:4`

D

`1:8`

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The correct Answer is:
B
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