Understanding Electric Motors

Front

What completes an electrical circuit allowing the light bulb to light up?

Back

A switch is a device that opens or closes an electrical circuit, allowing current to flow and light the bulb.

Front

What type of magnet can be turned on and off?

Back

An electromagnet is a type of magnet that can be turned on and off by controlling the electric current.

Front

What is the role of brushes in an electric motor?

Back

Brushes maintain electrical contact within the motor, allowing current to flow to the rotor.

Front

How can the torque of an electric motor be increased?

Back

The torque of an electric motor can be increased by using more wires, which enhances the magnetic field.

Front

What is the non-moving part of an electric motor called?

Back

The stator is the stationary part of an electric motor that creates a magnetic field.

Front

What is an electric motor?

Back

An electric motor is a device that converts electrical energy into mechanical energy.

Front

What is the function of a commutator in an electric motor?

Back

The commutator reverses the direction of current in the motor windings, allowing continuous rotation.

Front

What is the rotor in an electric motor?

Back

The rotor is the rotating part of an electric motor that turns when electrical energy is applied.

Front

What is the principle behind how electric motors work?

Back

Electric motors work on the principle of electromagnetism, where electric current creates a magnetic field.

Front

What is the difference between a permanent magnet and an electromagnet?

Back

A permanent magnet produces a constant magnetic field, while an electromagnet's field can be turned on or off.