Question

Three capacitors each of 4 µF are to be connected in such a way that the effective capacitance is 6µF. This can be done by connecting them:

विकल्प

• all in series

• all in parallel

• two in parallel and one in series

• two in series and one in parallel

Answer 1

two in series and one in parallel

Explanation:

To provide a 6µF effective capacitance, two 4µF capacitors connected in series and one 4µF capacitor connected in parallel are used.

Two capacitors are connected in series.

∴ `1/"C" = 1/"C"_1 + `/"C"_2`

= `1/4 + 1/4`

= `1/2`

1 capacitor in parallel

∴ C_aq = C₃ + C

= 4 + 2

= 6 µF