What is a hollow coil
What is the hollow coil? The hollow coil is made up of two parts, namely the hollow and the coil. This is a hollow, smell you can know, mean middle nothing, coil, a guide wire is wound up, conductors are mutually insulated, when the current flows through a wire, the magnetic field around the coil can occur, the number of turns of the magnetic field strength with the current flowing in the coil coil is proportional with the strength. Similarly to a certain magnetic field, magnetic coil for open action, the same magnetic field can be transformed into electric energy, can be made into a relay, motor, motor, wireless equipment, speakers and other equipment using the magnetoelectric conversion principle. The wire material can be copper, iron, aluminum, gold and other metal equipment, coil middle can pierce metal type magnetic equipment enhance the conduction current of the magnetic field, when the middle of the coil as long as the plastic frame or skeleton on the formation of the hollow coil, widely used for various hollow coils, habits, all the planning round, square, oval and various special-shaped shape.
