Question

Three point charges are placed at distances of d , 2 d , and 3 d from a point P. The particle that is 2 d away from P has a charge of 6 q . From the options given, assign charges to the remaining two point charges such that the potential at point P is zero.

Answer 1

Answer:

at d the charge will be 3q and at 3d it will be 9q

Explanation:

for V=Vp-V2d

V=KQ/d=K*6q/2d=3kq/d for potential to 2d at 6q be zero the Vp will equal 3kq/d; hence at d, Q=3q and at 3d, Q=9q