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The electri potential V at any point O (...

The electri potential V at any point O (x, y, z all in metres) in space is given by `V = 4x^(2)V`. The electric field at the point `(1m,0,2m)` in volt `"metre"^(-1)` is

A

`+ 8` in x direction

B

8 in - x direction

C

16 in `+ x ` direction

D

16 in -x direction

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The correct Answer is:
B
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