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The symbol for a capacitor is the letter C. Capacitors store charges in an electrostatic field for a momentary period. It then releases an outburst of power at the appropriate time through discharge. One widespread use of capacitors is smoothening the ripples of a rectified AC power.
The unidirectional property of the diode makes it ideal for rectifying alternating current, AC into direct current, DC. One famous type of diode is the light-emitting diode, LED. As the name suggests, LED glows when an electric current passes through it.
An inductor is yet another common component of a circuit board. An inductor stores energy from an electric current in a magnetic field. In most cases, inductors are used together with capacitors to form an LC circuit.
A multiple-layer circuit board contains high component density and numerous circuits in a smaller space. Therefore, multilayer circuit boards find applications in computers, GPS, satellites, and aerospace systems.
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