Generators, Motors, and Transformers

Front

What do generators convert?

Back

Generators convert mechanical energy into electrical energy.

Front

How does a motor work?

Back

A motor works by generating a magnetic field in the loop of wire that is then attracted and repelled by the magnets in the motor, causing the loop to rotate.

Front

What is the principle behind the operation of an electric generator?

Back

The principle behind the operation of an electric generator is electromagnetic induction.

Front

What type of current is produced in a battery?

Back

A battery produces direct current (DC).

Front

What does a transformer actually transform?

Back

A transformer transforms voltage.

Front

Define electromagnetic induction.

Back

Electromagnetic induction is the process of generating electric current in a conductor by changing the magnetic field around it.

Front

What is the difference between alternating current (AC) and direct current (DC)?

Back

Alternating current (AC) changes direction periodically, while direct current (DC) flows in one direction only.

Front

What is the function of a transformer in an electrical circuit?

Back

The function of a transformer is to increase or decrease voltage levels in an electrical circuit.

Front

What is a common application of electric motors?

Back

Electric motors are commonly used in household appliances, such as fans, washing machines, and refrigerators.

Front

What is the role of magnets in electric motors?

Back

Magnets in electric motors create a magnetic field that interacts with the current in the wire loop, causing rotation.