IINDUCTOR
An inductor, also called a coil, choke or reactor, is a passive two terminal component that stores energy in a magnetic field when electric current flows through it. An inductor typically consists of an insulated wire wound into a coil around a core.
When the current flowing through an inductor changes, the time-varying magnetic field induces an electromotive force (e.m.f.) (Voltage) in the conductor, described by Faraday'sl law o motion. According to Lenz's law the induced voltage has a polarity (direction) which opposes the change in current that created it. As a result, inductors oppose any changes in current through them.
Testing a inductor
Inductor can be tested with a continuity test in multimeter
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