A) always zero
B) never zero
C) zero when mid point of dipole coincides with the point charge
D) zero when dipole axis is along any electric line of force.
Correct Answer: B
Solution :
Electric field of a point charge is non-uniform hence net force can never be zero. Since \[F=-\frac{pdE}{dx}\]
You need to login to perform this action.
You will be redirected in
3 sec
