If an electromagnet is used to pick up several metal objects and the current is then turned off, what happens
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If an electromagnet is used to pick up several metal objects and the current is then turned off, what happens

[From: ] [author: ] [Date: 12-05-28] [Hit: ]
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There is no longer a magnetic field around the coil of wires therefore it is no longer an electromagnet and the metal obkects will drop off
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