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Learn what an inductor is, how it works, and how to calculate its inductance. Explore the different types of inductors, such as iron core, air core, ferrite core, and choke, and their applications in electronic circuits.
- 47 min
- For a pure inductor, the power factor is zero.
- The phenomenon in which an emf is induced in a coil due to the change of current through the coil itself is known as self-induction.
- The phenomenon in which a change of current in one coil induces an emf in another neighbouring coil is called mutual induction.
- An emf is induced in a circuit whenever there is a change in the magnetic flux passing through it.
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. An inductor typically consists of an insulated wire wound into a coil.
Apr 22, 2024 · Learn what an inductor is, how it works, and what types of inductors exist. Find out how to calculate inductance, reactance, and energy stored in an inductor, and the difference between inductor and capacitor.
Oct 29, 2021 · An inductor (also known as an electrical inductor) is defined as a two-terminal passive electrical element that stores energy in the form of a magnetic field when electric current flows through it. It is also called a coil, chokes, or reactor.
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How does an inductor store energy?
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Dec 8, 2022 · The ability to store energy in the electric fields is measured in the units of henry, or henries, named after the guy who discovered the principle of inductance. For most real-life scenarios, particularly for electronics applications, most inductors are a small fraction of a henry.
- Josh Bishop
Learn about the inductor, a passive electrical component that opposes the change of current flow due to its inductance. Find out how to calculate the self-induced voltage, the effects of core material and the types of inductors.
What about the inductor? When the switch is closed, the current that points right-to-left for the inductor increases in the direction of the loop. As a result of Faraday's law, the inductor becomes a "smart battery" that acts to reduce the current, which means there is a voltage drop: \[\mathcal E_{inductor} = -L\dfrac{dI}{dt}\]
