What Is A Hollow Coil，air Core

What is a hollow coil，air core

What is a hollow coil? Air core?Hollow coil is divided into two parts, namely, the hollow coil. Hollow Gu thinking center is not what coil is a guide wire around the wire insulation, each other, when the current flows through a wire, coil turns around to produce a magnetic field, magnetic field intensity and the intensity of current flowing in the coil coil is proportional to. Similarly, in a certain magnetic field, with the coil cutting magnetic lines of action, the same magnetic field can be converted into electricity, the use of this principle can be made into a magnetoelectric conversion relay, motor, motor, wireless equipment, speakers and other devices. The wire material can be copper, iron, aluminum, gold and other metal devices, the center of the coil can be inserted into the metal type magnetic devices produced by the current enhanced guide magnetic field, when the coil center only or no plastic skeleton skeleton on the formation of the hollow coil, the hollow coil is applied widely to meet the various needs of the people, it is designed to round, square, oval and various special-shaped shape

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Schematic diagram of the magnetic field around the coil

Schematic diagram of action of cutting magnetic lines