A certain charge Q is divided into two parts q and 
. How the charge Q and q must be related, so that when q and 
is placed at a certain distance apart experience maximum electrostatic repulsion?
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
A
The electrostatic force of repulsion between the charge q and 
at separation r is given by
For maximum electrostatic force of repulsion, then 
i.e. 
As, 
is constant, therefore 
or 
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