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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Home » Physics » 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.