Physics Topic Practice
Electromagnets Explained | GCSE Physics Practice
An electromagnet is a magnet that can be turned on and off with electric current.
How can you make a scrapyard magnet stronger?
What is Electromagnets Explained | Practice?
"A type of magnet in which the magnetic field is produced by an electric current."
Question 1
What happens to an electromagnet when the current is turned off?
Question 2
Increasing the current through a solenoid will ____ its magnetic field.
Question 3
Which of these will NOT increase the strength of an electromagnet?
Electromagnet strength
Add an iron core.
Increase the number of coils of wire.
Increase the current flowing through total wire.
Exam Tip
Application: Electromagnets are used in electric bells, relays, and loudspeakers.
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