What is Electromagnetic Coil?

Electromagnetic Coil: Here, we are going to learn what is Electromagnetic Coil? Types of Electromagnetic Coil, etc.
Submitted by Anushree Goswami, on September 19, 2020

Electromagnetic Coil

An electromagnetic coil, which is also known as an inductor, is an electrical conductor that enables the flow of electrical current in a coil-like wire, which turned numerous times around the core. In the field of electrical engineering, it comprises two specific components; one of them is a conductor and another one is a core. It is used in the execution of electric current with a magnetic field based on a piece of equipment; some of them comprise electromagnets, sensor coils, generators, transformers, etc. In the process of generation of an electric current or magnetic field, it is used either to pass electric current in the course of the wire of the coil to generate a magnetic field or on the other hand a peripheral time-varying magnetic field in the course of the internal core of the coil to generate a voltage in the electrical conductor. The benefit of using a wire in the form of a coil is that it enhances the strong force of a magnetic field generated by a given electric current passing through the wire.

Types of Coils

Coils are classified into three types based on frequency of current, which comprise:

  • Direct current or DC coils
  • Audio-frequency or AF coils
  • Radio-frequency or RF coils

Coils are classified into 5 types based on their function, which comprise:

  • Electromagnets
  • Inductors
  • Transformers
  • Electric motors and generators
  • Transducer coils

Reference: Electromagnetic coil


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