A non-conducting disc of radius R is uniformly charged with surface charge density σ. A disc of radius 
is cut from the disc, as shown in the figure. The electric potential at centre C of large disc will be
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
C
The electric potential at the center of the complete disc, 
Let us assume that the potential at the circumference of the smaller disc is 
Net potential at center C is,
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