When a long insulated piece of wire is wounded around an iron nail in the form of a coil. The free ends of the wire are connected to a cell through a switch. The current is switched on and some pins are placed near the ends of the nail. Is it true that iron nail attract the pins that are placed near the ends of the nail?

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True

False

answer is A.

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Detailed Solution

The above statement is True.
When current passes through a wire, a magnetic field is formed around the wire due to the magnetic effect of electric current, and the wire starts behaving like an electromagnet. That's why the iron nail attracts the pins due to the magnetic effect of the electric current. The current through the wire creates a magnetic field concentrated in the magnet's core, denoting the coil's centre.

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