Capacitors. Electrolytic (lower left),variable (centre) and ceramic (lower right) capacitors. A capacitor is similar to a battery in that it is designed to store and release electrons. It has two terminals (electrodes) that connect to two metal plates separated by a dielectric (non- conducting material). However,unlike a battery,a capacitor cannot produce new electrons and must be charged. Also,a capacitor can release its charge in under a second,compared to a few minutes for a battery. This is used to power a camera flash,for example | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Andrew Lambert Photography |
Bildgröße: | 4894 px × 3572 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |