The work done in carrying a charge ‘Q’ once round a circle of radius ‘r’ with charge ‘q’ at the centre of circle is
Question. The work done in carrying a charge ‘Q’ once round a circle of radius ‘r’ with charge ‘q’ at the centre of circle is a) Q/4πε0r b) Qq/4πε0r c) Zero d) θq/2r Answer: c) Zero