Question

[Karnataka C.E.T. '99)
If a charge is moved against the Coulomb force of an electric field-
(a) work is done by the electric field
(b) energy is used from some outside source
(c) the strength of field is decreased
(d) the energy of the system is decreased
IN.C.E.R.T. 78]​

Answer 1

Answer:

b option is correct I think.