6 capacitors each of capacity 6 μF are joined in 2 rows, each of 3 capacitors. The capacity of the combination is
Six capacitors each capacity 6 μF joined in 2 rows, each of 3 capacitors
Three are in series (shown in fig); equivalent capacity of each row =Cs=C3=63=2 μF
Two are in parallel (shown in fig); equivalent capacity of six capacitors each capacity 6 μF joined in 2 rows, each of 3 capacitors =C=2Cs=2×2=4 μF