An inductor, also called a coil, choke, or reactor, is a passive two-terminal electrical component that stores energy in a magnetic field when electric current flows through it. It typically consists of an insulated wire wound into a coil and it works on the principle of electromagnetic induction. When electricity flows into the coil from the left to the right, this will generate a magnetic field in the clockwise direction. Inductors are typically used as energy storage devices in switched-mode power devices to produce DC current. The inductor, which stores energy, supplies energy to the circuit to maintain current flow during “off” switching periods, thus enabling topographies where output voltage exceeds input voltage. The electrical symbol for an inductor is 'L'. They are used in many electronic circuits like television, radio tuning circuits and filters to vary the frequency and selecting the various frequency channels. Please go through the insightful presentation for more points.

Arundathi Kuttappan

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