Energy Store in Capacitor derivation Class12

energy stored in capacitor derivation class 12 physics

✱Electric potential Energy store by capacitor

At,any instant t charges on plate are +q and -q

dw=work done by External force during displacement of dq charge from Negative plate to positive plate.

dw=dq(v1-v2)

potential difference between two plate (v1-v2)=V V=potential of capacitor for any capacitor  q=cv

 dw=dq.v

ഽdw= ഽdq.v

W=ഽdq.q/c