Electrostatics Question 181
Force of attraction between two point charges $ Q $ and -q separated by $ d $ metre is $ F _{e} $ . When these charges are placed on two identical spheres of radius $ R=0.3d $ whose centres are $ d $ metre apart, the force of attraction between them is [AIIMS 1995]
Options:
A) Greater than $ F _{e} $
B) Equal to $ F _{e} $
C) Less than $ F _{e} $
D) Less than $ F _{e} $
Show Answer
Answer:
Correct Answer: A
Solution:
Separation between the spheres is not too large compared to their radius, so due to induction effect, redistribution of charge takes place. Hence, effective charge separation decreases, so force increases.
BETA
