Question

A 700 pf capacitor is charged by a 50v battery. how much is the electrostatic energy stored by it?

Answer 1

A 12pF capacitor is connected to a 50V battery. How much electrostatic energy is stored in the capacitor ? Sol. ... A 600pF capacitor is charged by a 200V supply. ... C1 = C2 = 600 pF.

Answer 2

Answer : Energy stored, $U=8.75\times 10^{-7}\ J$

Explanation :

It is given that :

Charge on a capacitor, $C=700\ pF=700\times 10^{-12}\ F$

Potential, $V=50\ V$

Energy stored in a capacitor is given by the following relation :

$U=\dfrac{1}{2}CV^2$

C is capacitance of a circuit.

V is the potential difference.

$U=\dfrac{1}{2}\times 700\times 10^{-12}\ F\times (50\ V)^2$

$U=8.75\times 10^{-7}\ J$

Hence, this is the required solution.