If identical charges 
are placed at each corner of a cube of side b, then electric potential energy of charge 
which is placed at centre of the cube will be
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
D
Length of the diagonal of a cube having each side b is 
b. So, distance of centre of cube from each vertex is 
.
Hence, potential energy of the given system of charge is
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