Capacity of Capacitor

When capacitors are in series 1/Ceq = (1/C1) + (1/C2) + (1/C3).............. where C1 , C2 , C3 ..... are capacitors in series and Ceq is equivalent capacior. For this case 1/Ceq = 1/0.5 + 1/2 => Ceq = 2*0.5/2.5 = 0.4 uF

When Capaciors are in parallel Ceq = C1 + C2 + C3 ......... C1, C2 , C3 .... are capacitors in parallel IN this case Ceq = 2 + 0.5 = 2.5 uF

THE SERIES

$\frac{1}{C_{total}}=\frac{1}{0.5}+\frac{1}{2}$

$\frac{1}{C_{total}}=\frac{4+1}{2}$

$C_{total}=\frac{2}{5}$

$C_{total}=\boxed{0.4}$

THE PARALLEL

$C_{total}=2+0.5$

$C_{total}=\boxed{2.5}$

That was easy! :)

when the capacitors are connected in series the equivalent capacitance id given by Ceq = C1 * C2 / (C1 + C2) when the capacitors are connected in parallel the equivalent capacitance is given by Ceq = C1 + C2