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OpenStudy (anonymous):
(help please) Which is the best definition for an electromagnet? A)a device made of a metal core that conducts electric current through a magnetic field B)a device made of an iron core that is magnetized by electric current in a coil that surrounds it C)a device made of a nonmagnetized core that is magnetized by electric current in a coil that surrounds it D)a device made of a magnetized core that is surrounded by a magnetic field
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OpenStudy (anonymous):
Bianey23_ i thinks it C
OpenStudy (anonymous):
It is C. Since, electromagnet requires to be non-magnetic when no electricity is passed through it.
OpenStudy (anonymous):
thank you!!!!
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