A coil of wire carrying a current in a magnetic field experiences a force that tends to make it rotate. This effect can be used to make an electric motor.
How is rotation caused in a motor?
The coil of wire is mounted in the gap between the two magnets. The split rings make electrical contact with the coil and reverse the current every half turn. When an electric current flows through the coil, a force is exerted on the coil, causing it to spin.
How is rotation produced?
A rotation is a circular movement of an object around a center (or point) of rotation. … A rotation around a completely external axis, e.g. the planet Earth around the Sun, is called revolving or orbiting, typically when it is produced by gravity, and the ends of the rotation axis can be called the orbital poles.
How does a simple motor maintain rotation?
A simple electric motor can be built using a coil of wire that is free to rotate between two opposite magnetic poles. When an electric current flows through the coil, the coil experiences a force and moves. The direction of the current must be reversed every half turn, otherwise the coil comes to a halt again.
Can you make the motor turn to the opposite direction?
In order to reverse the direction of an AC motor, the magnetic fields must be altered to provoke movement in the opposite direction. Since each wire consists of a positive and negative current within the magnetic fields, the flip-flopping of main and starter wires causes the motor to run in reverse rotation.
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 is rotation and its effect?
The spinning of the Earth on its axis from west to east is called rotation. Effects of the Earth’s rotation are: The rotation of the Earth causes the day and the night. … The tides are deflected due to the rotation. The speed of rotation also affects the movement of the wind.
What are some examples of rotation?
Rotation is the process or act of turning or circling around something. An example of rotation is the earth’s orbit around the sun. An example of rotation is a group of people holding hands in a circle and walking in the same direction.
Is the rotating part of motor?
The rotor is located inside the stator and is mounted on the AC motor’s shaft. The term “rotor” is derived from the word rotating. The rotor then is the rotating part of the AC motor. The objective of these motor components is to make the rotor rotate which in turn will rotate the motor shaft.
Which is not a rotating part in the motor?
With this simple understanding, we can divide any motor into two physical parts; one part which rotates—called the rotor—and one part which doesn’t— called the stator.