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You are moving a negative charge q lt 0 ...

You are moving a negative charge `q lt 0` at a small constant speed away from a uniformly charged non-conducting spherical shell on which resides a negative charge `Q lt 0`. The electrostatic, field of `Q` is `E`. Let `U` be the total energy of the system, `W_(a)` the work done by the force `F_(a)` you exert on `q, W_(E)` the work done by the electrostaitc force `F_(E)` on `q`. Then, as `q` is being moved :

A

`W_(a) = -W_(E)`, there `U` remains constant

B

`F_(a) = -F_(E)`

C

`U` increases

D

`U` decreases

Text Solution

Verified by Experts

The correct Answer is:
D
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