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Two spheres of radii R1 and R2 have equal charge are joint together with a copper wire. If the potential on each sphere after they are separated to each other is V, then initial charge on any sphere was `(k = 1/(4piin_(0)))`-
A. `(V)/(k)(R_(1) - R_(2))`
B. `(V)/(2k)(R_(1) + R_(2))`
C. `(V)/(3k)(R_(1) + R_(2))`
D. `(V)/(k) ((R_(1)R_(2)))/((R_(1) + R_(2)))`

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Correct Answer - B

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