A network of four 10 µF capacitors is connected to a 500 V supply, as shown in the figure. The equivalent capacitance of the network is:

$1.<mspace\; width="1em"></mspace>\frac{10}{3}\mu F$
$2.<mspace\; width="1em"></mspace>\frac{20}{3}\mu F$
$3.<mspace\; width="1em"></mspace>\frac{40}{3}\mu F$
$4.<mspace\; width="1em"></mspace>\frac{16}{3}\mu F$

A network of four 10 µF capacitors is connected to a 500 V supply, as shown in the figure. The charge on the capacitor $\left(C_4\right)$ is: (Note, the charge on a capacitor is the charge on the plate with higher potential, equal and opposite to the charge on the plate with lower potential).

$1.<mspace\; width="1em"></mspace>1.4\times {10}^{-3}<mspace\; width="1em"></mspace>C$
$2.<mspace\; width="1em"></mspace>9\times {10}^{-4<mspace\; width="1em"></mspace>}C$
$3.<mspace\; width="1em"></mspace>1.7\times {10}^{-3}<mspace\; width="1em"></mspace>C$
$4.<mspace\; width="1em"></mspace>5.0\times {10}^{-3}<mspace\; width="1em"></mspace>C$