Facts About Electric Motors

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An electric motor is an electrical device that functions on the common physics fundamental of converting electrical energy into the mechanical energy. Functioning of these motors runs on the law of electro magnetism that focuses on the attraction and repulsion forces between the two particles. Therefore, functioning of a motor depends on how strong are the magnetic fields in them. The stronger the magnetic fields are, stronger will be the motor's functionality.

Motors are Categorised in Different Forms

Electric motors are segmented according to their shapes and sizes. These can be as big as used for the propulsion of huge ships to as small as the ones found in watches and power tools. There are medium sized motors as well that are used for industrial purposes. An electric motor comprises of parts such as armature or a rotor, axle, field magnet, DC power supply and a commutator. All these parts are assembled to make an electric motor device. Whether small or large, an electric motor functions on the prime principle of A/C and D/C power supply.

Types of Electric Motors

There has been an improvement ...
... in the mechanical aspect of the electric motors ever since the market for electrical appliances has flourished. Market offers its customers usually two types of electric motors, direct current electric motors and alternate current electric motors respectively. However, the first type of direct electric motor was built by Americans, Emily and Thomas Davenport. Such motors were used for the commercial purposes, but were unsuccessful due to high cost factors. Other examples of direct current motor devices are brushless DC motors and stepping motors.

However, there are other types of electric motors that runs without a winding field. These motors are permanent magnet motors that functions on the basis of permanent magnets.

How an Electric Motor Functions?

An electric motor functions on the basic principle of electromagnetism. Therefore, it runs using attractive and repulsive forces of a magnet that further gives rise to a torque on the shaft of the motor. The components of a motor like rotor and a stator forms a magnetic field between them making the motor run smoothly.

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