THIS USER ASKED 馃憞

Current from a charged capacitor lights a bulb. as time goes on the brightness of the

THIS IS THE BEST ANSWER 馃憞

Capacitor is a device used to store energy

This device can store the energy in the form of electrostatic field energy

This is given according to a formula

U =  frac {Q ^ 2} {2C}

As we connect a charged capacitor to a light bulb the charge on the capacitor plates will begin to flow from one plate to another and during this charge flow the bulb will light up.

As the charge moves from one plate to another one plate positive charge will release another plate negative charge and this will release the full capacitor in time

So over time the glow of the bulb or the brightness of the bulb connected across a capacitor will decrease