Inductor

Inductor

An inductor is a passive electronic component that stores energy in the form of a magnetic field. In its simplest form, an inductor consists of a wire loop or coil. The inductance is directly proportional to the number of turns in the coil. Inductance also depends on the radius of the coil and on the type of material around which the coil is wound.

Principle of operation

An inductor works on the principle of inductance, which is a property of an electrical conductor by which a change in current flowing through it induces an electromotive force in both the conductor itself (self-inductance) and in any nearby conductors (mutual inductance).

Types of inductors

There are several types of inductors, including:

• Air core inductors - These inductors have coils that are wound on plastic, ceramic, or other non-magnetic materials.
• Iron core inductors - These inductors have coils that are wound on iron cores.
• Ferrite core inductors - These inductors have coils that are wound on ferrite cores.
• Toroidal inductors - These inductors have coils that are wound on a donut-shaped core.

Applications of inductors

Inductors are used in a wide range of applications, including:

• Power supplies - Inductors are used in power supplies to smooth the output voltage and to filter out high-frequency noise.
• Radio and television sets - Inductors are used in the tuning circuits of radio and television sets.
• Telecommunication systems - Inductors are used in telecommunication systems for signal processing.
• Electric power systems - Inductors are used in electric power systems for power factor correction and voltage regulation.

See also

• Capacitor
• Resistor
• Transformer
• Electromagnetic field
• Electromagnetic induction

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