2.10 A 12pF capacitor is connected to a 50V battery. How much electrostatic energy is stored in the capacitor?

Answers (1)

As we know,

the electrostatic energy stored in the capacitor is 

E=\frac{1}{2}CV^2

Here,

C= 12pF

V=50V

So,

E=\frac{1}{2}CV^2=\frac{1}{2}12*10^{-12}*50^2=1.5*10^{-8}J

Hence energy stored in the capacitor is 1.5*10^{-8}J

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