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The electric potential V("x") in a regio...

The electric potential `V("x")` in a region around the origin is given by `V"(x)" = 4x^(2)` volts. The electric charge enclosed in a cube of 1 m side with its centre at the origin is (in coulomb

A

`8epsi_(0)`

B

`-4epsi_(0)`

C

0

D

`-8epsi_(0)`

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