Questions
Four equal charges Q are placed at the four comers of a square of each side is 'a'. Work done in removing a charge -Q from its centre to infinity is
detailed solution
Correct option is C
Potential at centre O of the square,VO=4Q4πε0(a/2)Work done in shifting (- Q)charge from centre to infinityW=-QV∞-VO=QVO=42Q24πε0a=2Q2πε0aTalk to our academic expert!
Similar Questions
Two concentric spheres of radii R and r have similar charges with equal surface densities (). The electric potential at their common centre will be
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