The electric potential (V) in volts varies with x (in metre) according to the relation `V=5+4x^2`. The force experienced by a negative charge of 2muC located at x=0.5m is

Options

A. `2xx10^(-6)N`
B. `4xx10^(-6)N`
C. `6xx10^(-6)N`
D. `8xx10^(-6)N`

Answer

D