Question

When an insulated copper wire is wrapped around an iron nail and the
wire is attached a battery, then the attract paper pins, shown in the figure.
Explain this phenomenon.
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Answer 1

The phenomenon is magnetic phenomenon because when electricity is passed magnetic field is produced

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Answer 2

Answer:By simply wrapping wire that has an electrical current running through it around a nail, you can make an electromagnet. When the electric current moves through a wire, it makes a magnetic field. If you coil the wire around and around, it will make the magnetic force stronger, but it will still be pretty weak.

Explanation:

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