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What creates the magnetic field in an electromagnet? A electric current through a straight piece of metal B magnetic fields around a straight wire C electric current through a wire coil D all of these
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3 votes
What creates the magnetic field in an electromagnet?

A electric current through a straight piece of metal

B magnetic fields around a straight wire

C electric current through a wire coil

D all of these

User Eleonor
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1 Answer

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D all of these create a magnetic field. let me know if you want me to explain.
User WRAR
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