Four isolated pairs of point charges are arranged as follows (all charges are…
PHYSICS · Single correct · CBSE · Physics · Electric Charges and Fields · Electric Charges and Fields
Problem
Four isolated pairs of point charges are arranged as follows (all charges are multiples of q and all separations are multiples of d):
P. +q and +4q at separation 2d
Q. −2q and +3q at separation d
R. +5q and −q at separation 3d
S. +2q and +2q at separation 2d
Ignoring signs when comparing magnitudes, choose the correct ascending order of the magnitudes of electrostatic force among these four cases.
(a) P < R < S < Q
(b) R < Q < P < S
(c) R < P < S < Q
(d) P < S < R < Q