A condenser A of capacity `4muF` has a charge `20muC` and another condenser B of capacity `10muF` has a charge `40muC`. If they are connected parallel, then

Options

A. charge flows from B to A till the charges on them are equal
B. charge flows from B to A till common potential is reached
C. charged flows from A to B till common potential is reached
D. charge flow from A to B till charges on them are equal.

Answer

C

Explanation

In parallel potential constant `V = (C_(1)V_(1) + C_(2)V_(2))/(C_(1) + C_(2))` then find charges `q_(1)^(1) = C_(1)V, q_(2)^(1) = C_(2)V`