Role of the Magnetic Field in DC Electric Motors

Saturday, January 14th, 2012 - Marketing

Role of the Magnetic Field in DC Electric MotorsRole of the Magnetic Field in DC Electric Motors

DC electric motors account rotating coils of wire unhesitating by a magnetic field on a direct current. This working of movement combined cover a direct current transforms electrical energy into specialist energy. The magnetic field in these circuits is produced by direct currents, either macroscopic in wires, or microscopic currents produced by the electrons surrounding atom orbits. Role of the Magnetic Field in DC Electric Motors

The interaction between the magnetic field and the charge of the circuit is basic to the practical applications of the DC electric motor. Each magnetic field is dipolar, mask differing north and south poles. Magnetic fields trust serve as begin in single wires, in the coils of wire used to potential machines, in the bar magnets we are all known screen, and in the core of the earth. The wire coil used in DC motors is further admitted now the rotor or armature, and the pull of the contradictory poles is known thanks to the torque.

Most machines besides comprehend larger magnet called the stator, thanks to embodied is permanently fixed in one section, seeing opposed to the constantly moving rotor. The rotor works inveigh the magnetic field of the permanently fixed lodestone to produce scientific energy and motion. The rotor is and classified in that an solenoid over its field of solenoid is the repercussion of a direct current running finished the wires. This means that no magnetic field is produced when the DC electric motor is rancid slay and not in need. Role of the Magnetic Field in DC Electric Motors

Role of the Magnetic Field in DC Electric Motors

These circuits produce technical energy by working ensconce the basic light of magnetism, that a surviving magnet will attract and hold other metal objects in close range. This is because of the inherent quality of magnets referred to as the ” magnetic field. ” In permanent magnets the attracting force is very simple; there is a clear movement of attraction from the North Pole to the south. In electromagnets, however, the movement of the ” lines of flux ” is more complicated.

Because electromagnets are in constant motion with the direct current running through them, the magnetic flux is also constantly moving. Depending on the direction of the current, concentric circles of magnetic attraction are set up around the conductor. This changing magnetic field produces, in turn, an electric field. This generation of a different energy field is characterised by Faraday ‘ s Law which states that the electromotive force of any closed circuit is proportional to the rate of change of the magnetic flux, and is essential to the running of DC electric motors. Role of the Magnetic Field in DC Electric Motors

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