Which statement about an electromagnet is true? A. It doesn't function without a source of current. B. The core is made from a nonmagnetic material. C. It uses moving magnets to create an electric field. D. It creates a permanent and strong magnetic field.

Question

Maritza Johnston

Physics

24 August, 12:45

Which statement about an electromagnet is true? A. It doesn't function without a source of current. B. The core is made from a nonmagnetic material. C. It uses moving magnets to create an electric field. D. It creates a permanent and strong magnetic field.

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Answers (2)

Know the Answer?

Cotton · Answer 1

The answer is A

just did test

Adelyn Mcmahon · Answer 2

An electromagnet is only magnetic when there's electric current flowing through its coils (A). When there's no current flowing through it, it just lays there like a lump of iron with wire wound around it.