Derive an expression for the energy stored in a parallel plate capacitor c having charges +q and -q on its plates
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Let q be the charge and V be the potential difference between the
plates of the capacitor. If dq is the additional charge given to the plate,
then work done is, dw = Vdq
dw = q /C dq. (therefore V=q/c)
Total work done to charge a capacitor is
w =int dw =int(0-q) q/c dq =q^2/2c
plates of the capacitor. If dq is the additional charge given to the plate,
then work done is, dw = Vdq
dw = q /C dq. (therefore V=q/c)
Total work done to charge a capacitor is
w =int dw =int(0-q) q/c dq =q^2/2c
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