Resistors, Capacitors and Inductors
A resistor is a two-terminal component that opposes an electric current by producing a voltage drop between its terminals in accordance with Ohm's law:
>An inductor is a passive device used in circuits for its property of inductance. Inductance is an effect which results from the magnetic field that forms around a current through a conductor. This magnetic field is proportional to the current. When the current changes, the magnetic field also changes, resulting in an electromagnetic field. This field opposes changes in current.
Decoupling is the art and practice of breaking coupling between portions of systems and circuits to ensure proper operation. Bypassing is the practice of adding a low-impedance path to shunt transient energy to ground at the source. Required for proper decoupling.The function of the bypass capacitor is to dampen the fluctuation of the voltage, the AC component, or the noise. Another term used for the bypass capacitor is a filter cap.