A two point charges 
and 
are fixed on the 
-axis at 
and 
, respectively. If a third point charge ' 
' is taken from the origin to 
along the semicircle as shown in the figure, the energy of the charge will :
A
increase by 
B
increase by 
C
decrease by 
D
decrease by 
Text Solution
Verified by ExpertsThe correct answer is:
D
Change in potential energy, 
Potential of 
is same as initial and final point of the path.
-ve sign shows the energy of the charge is decreasing.
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