Which factors affect the strength of an electromagnet? Check all that apply. the direction of the current flowing through the wirethe amount of current flowing through the wirethe number of coils in the wirethe material of the wirethe material of the core
decreases✔ increasesdoes not change
Nineteenth century English scientist Michael Faraday found that if he moved a magnet through a loop of wire, an electric current flowed in that wire.What process did Faraday discover?
a wire coilan iron bar✔ a magnet
Which electromagnet is the strongest?
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