The electric potential at any point in 3...

The electric potential at any point in 3 dimensional co-ordinate (x,y, z) space is V = `4x^2` volt. The electric field at (1m, 0m, 2m) point in `V//m` will be

A

`-8hati`

B

`8hati`

C

`-16hati`

D

`16hati`

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