How does a simple electric motor operate?
This simple electric motor works by the magnetic force F = IL x B. … The magnetic field at both of these spots points in the same direction. Thus, the magnetic force on the wire at opposite ends of the loop points in opposite directions, causing it to spin.
What factors will affect the rotation of the simple electric motor?
The speed of rotation of the coil can be increased by:
- increasing the size of the current;
- using a stronger magnet;
- increasing the number of turns of wire in the coil;
- reducing friction between the coil and the axel it rotates on.
What are the factors that affect the speed of dc motor?
Factors Affecting The Speed Of A D.C. Motor
- The flux Φ
- The voltage across the armature.
- The applied voltage V.
What is the operation of a simple electric motor and generator?
When an electrical current is applied to the motor, the magnets or windings create a magnetic field that both attracts and repels the rotor, causing it to spin. The spinning motion of the rotor drives the shaft that it is mounted on, which in turn can deliver the mechanical power wherever it is needed.
What is the price of electric motor?
Questions & Answers on Single Phase Electric Motor
|Power||Min Price||Max Price|
|10-100 KW||Rs 3500/Piece||Rs 8000/Piece|
|<10 KW||Rs 2000/Piece||Rs 8500/Piece|
What is the role of a simple motor?
Motors turn electrical energy into rotational motion called torque. … The simple motor built in class uses a coil that is a temporary electromagnet. This coil gets the force to help create torque from the electrical current supplied by the battery.
How do you make a motor faster?
One easy way to make the motor run faster is to add another magnet. Hold a magnet over the top of the motor while it is running. As you move the magnet closer to the spinning coil, one of two things will happen. Either the motor will stop, or it will run faster.
How do you make an electric motor more powerful?
We can increase the turning force (or torque) that the motor can create in three ways: either we can have a more powerful permanent magnet, or we can increase the electric current flowing through the wire, or we can make the coil so it has many “turns” (loops) of very thin wire instead of one “turn” of thick wire.
Why will a motor not work without a commutator?
No, a direct current motor cannot run without a commutator because there is no induced electromotive force inside the armature. The commutator plays the function of supplying current to the armature from the brush. That is why the armature removed will not supply the motor.
How can the speed of a DC motor be controlled?
Thus, the speed of a DC motor can be controlled in three ways: By varying the supply voltage. By varying the flux, and by varying the current through the field winding. By varying the armature voltage, and by varying the armature resistance.
What are the two factors controlling the speed of a DC motor?
Factors Affecting The Speed Of Dc Motor
- The applied voltage.
- The flux.
- The voltage across an armature.
What are the applications of DC motor?
DC machines are also used in applications where high starting torque and accurate speed control over a wide range are important. Major applications for DC motors are: elevators, steel mills, rolling mills, locomotives, and excavators. Like other rotating machines, DC motors result from the interaction of two magnets.
Can a fan motor generate electricity?
The fan is a bi-directional machine, so it can transform wind energy in mechanical energy without any change. In order to obtain electrical energy, it shall be necessary to make changes in the motor to obtain a generator. The design of these motors is very simple.
What are the three basic parts of an electric motor?
No matter the type of motor, there are three basic parts: a stator, a commutator, and a rotor. Together they use electromagnetism to cause the motor to spin.
What is difference between electric motor and generator?
An electric motor is a machine that converts electrical energy to mechanical energy. An electric generator is a machine that converts mechanical energy to electrical energy. … In a motor, current is supplied to the armature winding. In a generator, current is produced in the armature winding.