How do motors work?

Answer 1

dc motor- a basic dc motor has a stator and a rotor..

stator may consist of either permanent magnet or electromagnet. this s to produce the required magnetic field.

rotor consists of the armature conductors which carry current. when supply is given to the rotor it experiences a force and hence it rotates.

Answer 2

In d.c.motor, operation is based on simple electromagnetism. A current-carrying conductor generates a magnetic field; when this is then placed in an external magnetic field, it will experience a force .magnetic interaction between a current-carrying conductor and an external magnetic field to generate rotational motion.
Before I can explain how it works, I have to go over what it is made of. There is a coil of copper wire that is connected to a central rod. This is what it spins on. The coil is surrounded by a magnetic ring. When current runs through the wire and through the coil, it will generate a magnetic field, spinning the coil. The coil spins because of the magnetic field. The north pole of the coil will attract to the south pole of the magnet, making a half rotation. The momentum will make a full rotation. This will bring the coil's north pole to the magnet's north pole and the magnet will repel the coil, and the whole cycle starts over. When you remove the current, the coil will lose its field and spin freely.

Answer 3

They use the magnetic field induced by the current carried through loops of wires around the central ferromagnetic axis. These loops are oriented so that the magnetic field applies a torque on the axis, thereby causing it to turn.
When an electrical source, (battery) completes a circuit, the electricity powers an electromagnet in the motor that makes it move (usually spin) in a certain way.

Answer 4

Parts of an AC Motor

An AC motor comes with two major parts: the rotors and stators. They come with magnetic fields that make them push and pull each other as a result of alternating repulsion and http://wiki.answers.com/Q/l of the magnets. Stators are stationary electrical wire windings that are installed around the motor's case, while rotors are designed to rotate around an axis and are attached to an axle. The armature is composed of the combination of rotor and axle.

The Magnetic Field

A magnetic field is produced when http://wiki.answers.com/Q/l flows into a wire in a stator. The flow of electricity is then reversed, causing the polarity of the field to change as well. The stators take turns receiving flows of electrical current. The magnetic fields travel around the motor's housing and onto the rotors. This will then induce an opposite magnetic field on the rotor, which attracts it toward that stator and pushing it away from another stator that has the same polarity (note the fields travel through the stators in a sequence so that two stators located next to each other will have opposite polarities.)

Harnessing the Power

When the magnetic field goes through the stators, the rotor is either pushed or pulled relevant to the stators near it. This will cause the armature to spin. In an induction motor, motion from the spinning armature is harnessed with the use of fan blades.

Answer 5

A DC motor maintains a constant angular magnetic field between the stator and the rotor so that torque is constant. This is usually accomplished with brushes and a commutator, and multiple rotor windings so, as the rotor turns, one winding gets turned off and another (in succession) gets turned on.

Some DC motors are brushless, involving windings and a permanent magnet rotor. These are actually AC motors with integrated electronics, so as to maintain the rotating magnetic field.

Answer 6

dc motor work on the principle or current carrying conductor in the magnet field

Answer 7

stator is the main part in d.c machine.it gives the mechanical strength to the machine. it supports the inner components of the machine.

Answer 8

The 'stator' for any machine, d.c. or a.c., is its stationary part; its rotating part is called its 'rotor'.