Answer:
If you disconnect the wire, the magnetic field disappears and the nail is no longer a magnet. If you leave the wire connected long enough, the nail's magnetic domains will realign enough to make it a permanent magnet.
Explanation:
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Answers & Comments
Answer:
If you disconnect the wire, the magnetic field disappears and the nail is no longer a magnet. If you leave the wire connected long enough, the nail's magnetic domains will realign enough to make it a permanent magnet.
Explanation: