Capacitors are passive electronic components capable of storing and releasing electric charge. Capacitors are similar to batteries but operate thanks to physics rather than chemistry. Capacitors can act as filters on electric signals (as in the RC circuit) to create large pulses of currents and many more applications.
The capacitance is the physical property used by capacitors to store charge. Geometric factors and fabrication details uniquely determine the capacitance of a device. We measure the capacitance in farads. Read more