What is the structure and working principle of electromagnet?

An electromagnet is a type of magnet in which the magnetic field is produced by an electric current. Electromagnets usually consist of wire wound into a coil. A current through the wire creates a magnetic field which is concentrated in the hole, denoting the center of the coil. The magnetic field disappears when the current is turned off. The wire turns are often wound around a magnetic core made from a ferromagnetic or ferrimagnetic material such as iron; the magnetic core concentrates the magnetic flux and makes a more powerful magnet.

How many types of electromagnets are there?

1、According to the method of action

Electromagnet according to the action method can keep type and attracted type two kinds of share out bonus, keep the electromagnet to maintain all mechanical parts, magnetic load, produce processing and chemical items in the shipping, etc., and now the electromagnetic brake, electromagnetic induction hydraulic clamping, lifting electromagnet and metal raw material of laser cutting processing of numerical control lathe bed are using this type electromagnet.

2、According to the number of distance coil power supply system classification

This type of electromagnetic can be distributed direct current electromagnet and communication electromagnet. The coil of DC electromagnet is communicating electricity, and the magnetic flux created is not stable magnetic flux with time. The excitation regulator coil of the communication electromagnet passes the communication current, and the magnetic flux created changes with a budget fixed rate of the switching power supply.

3、According to the interface method of the coil

The electromagnet is divided into series and parallel two kinds according to the interface method of the coil, because the coil turns of the series coil are generally very few, and the coil inductance of the coarse transmission line is used, the resistor and the inductor value are small, so the damage to the power circuit can be neglected. The number of turns of the parallel coil is more, the transmission line is thinner, and all the operating voltage of the power circuit is added to the two ends of the coil. The current flow and the resistor are far larger than the connected coil relative to the communication em electromagnetic.

What is called electromagnet?

An electromagnet is a device that uses electricity to generate electromagnetic force. The outer part of the core is wound with a conductive winding matching its power. This coil of current is magnetic like a magnet. It is also called an electromagnet. We usually make it in the shape of a strip or shoe to make the core easier to magnetize. In addition, in order to make electromagnet power immediately degaussing, we often use degaussing faster soft iron or silicon steel materials to make. Such an electromagnet has electric field and magnetic field, power after the magnetic will disappear. Electromagnet in our daily life has a very wide range of applications, because of its invention also makes the power of the generator has been greatly improved

What is the principle of electromagnet?

Magnet can attract iron, cobalt, nickel and other substances, the principle is that the electric field magnetic field by the current will magnetize other objects, magnetized objects will electromagnetic field energy, the interaction between the electric field to produce force. The atomic structure of a magnet is special and has its own magnetic moment, which can produce a magnetic field.

What is an electromagnet and how do they work?

An electromagnet is a device with an iron core inside it that uses a coil of electric current to make it magnetic like a magnet. It is usually made in the shape of a bar or shoe. The core should be made of soft iron or silicon steel which is easy to magnetize and easy to disappear magnetism. Such an phet magnets and electromagnets is magnetic when it is powered on, and then disappears after the power is cut off.