As it can't produce new electrons, a voltage capacitor is much simpler than a battery. It only stores them. As it has the capacity to store energy, it is known as a capacitor.
To serve any purpose, from an ultra-capacitor powering a commuter bus to the smallest plastic capacitor in your calculator, Capacitors can be manufactured.
To two metal plates, the terminals connect. These plates inside a capacitor are separated by a dielectric, or non-conducting substance. From a piece of paper and two pieces of aluminum foil, you can easily make a capacitor.
Capacitor Circuit
Here's what happens when you connect a capacitor to a battery:
Electrons that the battery is producing are accepted by the plate on the capacitor that attaches to the negative terminal of the battery.
To the positive terminal of the battery, the plate on the capacitor that attaches loses electrons to the battery.
The capacitor has the same voltage as the battery once it's charged. The capacity is small for a small capacitor. But quite a charge can be held by large capacitors.
Holding enough charge to light a flashlight for a minute or more, you can find capacitors as big as soda cans.
