What is a Motor?
Motor is an electrical device that converts electrical energy to mechanical energy. It works on electrical power as input hence it can be further divided into AC motors and DC motors and outputs some mechanical work like rotation or any kind of movement. AC motors take Alternating current as input while DC motors take Direct current as input. There is a further classification of motor based on its construction. Electric fans, vacuum cleaners, and other major household appliances operate due to the motor present inside them.
Working of Motor
As discussed, Motor takes electricity (AC or DC) and converts it into mechanical energy using principles of electromagnetic induction. Construction of the motor consists of two parts – the Stator (the stationary part) and the Rotor (the rotating part).
As the current flows in the motor, the stator of the motor with a copper coil creates a magnetic field. The moving part rotor is connected to shaft, and it interacts with the magnetic field, it causes Lorentz force on the rotor which in turn experiences torque and begins to rotate, hence the generation of mechanical energy. The rotation can be controlled by controlling the flow of voltage and current in the motor.
Difference Between Motor and Generator
The major difference between a motor and a generator is that a motor electrical energy to mechanical energy whereas a generator convert mechanical energy to electrical energy. Both motors and generators operate through electromagnetic induction, which occurs when a changing magnetic field induces a voltage.
This article provides the difference between motor and generator, along with their definition and working.
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