Electromagnetic inducation is the process of generating an electromotive force by moving a conductor through a magnetic field. And electric motor works on the principle of electromagnetic induction.
Does electric motor work on electromagnetic induction?
Electric motors turn electricity into motion by exploiting electromagnetic induction. A simple direct current (DC) motor is illustrated below. The motor features a permanent horseshoe magnet (called the stator because it’s fixed in place) and an turning coil of wire called an armature (or rotor, because it rotates).
What works on the principle of electromagnetic induction?
An electric generator is a machine which generates electricity by using the principle of electromagnetic induction. The electric generator is called dynamo.
Does DC motor works on the principle of electromagnetic induction?
Presence of the back emf makes a dc motor ‘self-regulating’. When the armature of a motor is rotating, the conductors are also cutting the magnetic flux lines and hence according to the Faraday’s law of electromagnetic induction, an emf induces in the armature conductors.
What are the two main components of an electric motor?
The two main components of this kind of motor are the stator (stationary element) and the rotor (rotating element). The stator is a fixed part of the stationary motor.
What is the symbol of DC motor?
|Horizontal Symbol||Vertical Symbol||Description|
|HMO1M15||VMO1M15||DC Motor – Stepping with Permanent Magnets|
|HMO1M7||VMO1M7||DC Motor – Series Excitation|
|HMO1M8||VMO1M8||DC Motor – Derived Excitation|
|HMO1M12||VMO1M12||DC Motor – Independent Excitation|
What are the advantages of DC motor?
Good speed control
DC motors offer highly controllable speed. By changing the armature or field voltage it’s possible to achieve wide speed variation and with this level of controllability, DC motors offer the precision required by a wide range of industry applications.
What are the main parts of electric motor?
Different Parts of an Electric Motor and Their Function
- A power supply – mostly DC for a simple motor.
- Field Magnet – could be a permanent magnet or an electromagnet.
- An Armature or rotor.
What is the process of electromagnetic induction?
Electromagnetic induction is the process of generating electric current with a magnetic field. It occurs whenever a magnetic field and an electric conductor move relative to one another so the conductor crosses lines of force in the magnetic field.
What is the principle of electromagnetic damping?
The electromagnetic damping force is proportional to the induced eddy current, strength of the magnetic field and the speed of the object. Which implies that faster the object moves, greater will be the damping and slower the motion of object lower will be damping which will result in the smooth stopping of the object.
Which one is not works on the principle of electromagnetic induction?
Out of the given options, room heater does not use the principle of electromagnetic induction. It is based on the heating effect of electric current.
What are the applications of DC motor?
Application of Compound DC motor
- Electric shovels.
- Reciprocating machine.
- Stamping machine.
- Rolling mills.
What is torque equation of DC motor?
Torque or moment or moment of force is the tendency of a force to rotate or move an object about an axis. A force is a push or pull, likewise, torque is a twist to an object. Mathematically, torque, T = F × r.