# What causes an electric motor to spin?

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They operate using principles of electromagnetism, which shows that a force is applied when an electric current is present in a magnetic field. This force creates a torque on a loop of wire present in the magnetic field, which causes the motor to spin and perform useful work.

## What keeps an electric motor spinning?

Inside an electric motor, permanent magnets are set onto a ring surrounding a coil of wire. When the appliance’s switch is flicked on, electrons flow through the wire, turning it into an electromagnet. The attractive and repulsive forces of the permanent magnets around it make the electromagnet spin.

## What causes rotation in an electric motor?

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 does a motor create rotation?

Large AC motors (used in things like factory machines) work in a slightly different way: they pass alternating current through opposing pairs of magnets to create a rotating magnetic field, which “induces” (creates) a magnetic field in the motor’s rotor, causing it to spin around.

## What do you know about electromagnets?

An electromagnet is a type of magnet in which the magnetic field is produced by an electric current. Electromagnets usually consist of wire wound into a coil. A current through the wire creates a magnetic field which is concentrated in the hole, denoting the center of the coil.

## What is a commutator in a motor?

The commutator assures that the current from the generator always flows in one direction. … On DC and most AC motors the purpose of the commutator is to insure that the current flowing through the rotor windings is always in the same direction, and the proper coil on the rotor is energized in respect to the field coils.

## What causes a rotor to rotate?

The rotor is a moving component of an electromagnetic system in the electric motor, electric generator, or alternator. Its rotation is due to the interaction between the windings and magnetic fields which produces a torque around the rotor’s axis.

## Why do motors rotate anticlockwise?

It is due to the counter clockwise motion of the motor. The motor rotates in the counter clockwise direction the blades of the fan are attached to the motor hence the blades rotates in the anti clockwise direction. So it is due to the motor rotation the fan rotates in counter clockwise direction.

## What is motor rotation?

Rotation. The direction in which shaft rotates: CW-Clockwise; CCW-Counterclockwise; CW/CCW(Reversible), rotation can be changed by electrical reconnection. Unless stated otherwise inSpecial Features column, rotation is viewed facing shaft end on single-shaft motors, and lead endon double-shaft models.

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## How do you make an electric motor spin the other way?

How to make the motor turn the other way

1. Reverse the current. One way to change the direction of the motor is to reverse the battery. …
2. Reverse the magnetic fields. Another way to change the direction of the motor is to reverse the positions of the magnetic fields (N and S) . …
3. Reverse the current and the magnetic field.

## How does a DC motor spin?

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.

## Can magnets produce electricity?

Magnetic fields can be used to make electricity

Moving a magnet around a coil of wire, or moving a coil of wire around a magnet, pushes the electrons in the wire and creates an electrical current. Electricity generators essentially convert kinetic energy (the energy of motion) into electrical energy.

## Where around the house can you find electromagnets?

Electromagnets are found in doorbells, hard drives, speakers, MagLev trains, anti-shoplifting systems, MRI machines, microphones, home security systems, VCRs, tape decks, motors, and many other everyday objects.

## Which appliance does not use electromagnet?

Among the given appliances only the electric heater does not use an electromagnet. It works based on the heating effect of the electric current.