Nov 11, 2025 · Electric motor, any of a class of devices that convert electrical energy to mechanical energy, usually by employing electromagnetic phenomena. Most electric motors develop their …

5 days ago · A typical small DC motor, such as those used in automobile fans, contains two poles made of ferrite permanent-magnet material. When higher torque is required, as, for example, in the starter …

Nov 14, 2025 · To start an automobile, currents in an electric starter motor generate magnetic fields that rotate the motor shaft and drive engine pistons to compress an explosive mixture of gasoline and air; …

Oct 17, 2025 · Interference, in physics, the net effect of the combination of two or more wave trains moving on intersecting or coincident paths. The effect is that of the addition of the amplitudes of the …

Nov 11, 2025 · A linear induction motor provides linear force and motion rather than rotational torque. The shape and operation of a linear induction motor can be visualized as depicted in the figure by …

Nov 14, 2025 · Following the discovery of the electron, electromagnetic theory became an integral part of the theories of the atomic, subatomic, and subnuclear structure of matter.

Nov 11, 2025 · Electric motor - Synchronous, Rotating Fields, AC Motors: A synchronous motor is one in which the rotor normally rotates at the same speed as the revolving field in the machine.

Nov 10, 2025 · Lorentz force, the force on a charged particle q moving with velocity v through an electric field E and magnetic field B. The entire electromagnetic force F on the charged particle is called the …

Dec 10, 2025 · This device, which transformed electrical energy into mechanical energy, was the first electric motor. This discovery led Faraday to contemplate the nature of electricity.

An electromagnetic pump is a linear motor in which the solid conductor is replaced by a conducting fluid such as a liquid metal. The force on the conducting fluid produces the pumping action.