Published by:
CGP EDU Academic Team
Published on: August 13, 2026
There is a uniform spherically symmetric surface charge density at a distance 
from the origin. The charge distribution is initially at rest and starts expanding because of mutual repulsion. The figure that represents best the speed 
of the distribution as a function of its instantaneous radius 
is:
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
A
At any instant ' 
'
Total energy of charge distribution is constant
i.e. 
Also the slope of 
-s curve will go on decreasing
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