Answer: Could you please add the answer choices.
Explanation:
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Answer:
when the direction of the Current changes.
Explanation:
Electromagnet refers to an iron ore wrapped around with a coil of wire, in presence of electric current. As it acts like a magnet, when current is passed through it.
The north & south poles of magnetic fields produced by such magnet, change with direction of current passed through it.
Explanation:
no one is that I can get it to you tomorrow at the same time ago i used to
The roughness of the surface, the mass of the object, and the area of contact.
