A magnet created by the flow of electricity through metal.
A magnet made out of long wires
An electrical circuit that is built with a magnet as the conductor.
Questão 2
Questão
An electromagnet can be switched on and off.
Responda
True
False
Questão 3
Questão
[blank_start]Solenoids[blank_end] are powerful electromagnets made from wire being wrapped around a nail and connected to a battery.
Responda
Solenoids
Questão 4
Questão
What three things is an electromagnet made with?
Responda
Magnet, light bulb, wire
Magnet, wire, switch
Wire, nail, battery
Wire, battery, light bulb
Questão 5
Questão
Electromagnets can be found in doorbells.
Responda
True
False
Questão 6
Questão
The difference between a magnet and an electromagnet is that you can increase or decrease the power of the electromagnet by [blank_start]controlling[blank_end] the [blank_start]supply[blank_end] of electricity.
Responda
controlling
supply
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