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Eight equal point charges are placed at ...

Eight equal point charges are placed at corners of a cube side length `a`. The potential and electric field magnitude at the centre of cube will be

A

A. `(4q)/(sqrt3πvarepsilon_0a),0`

B

B. `(4q)/(sqrt3πvarepsilon_0a),(4q)/(3πvarepsilon_0a^2)`

C

C. `0,0`

D

D. `(16q)/(sqrt3πvarepsilon_0 4a)`

Text Solution

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The correct Answer is:
D
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