Question

Consider an iron nail with ends $A$ and $B$. A bar magnet is brought near end $A$ of the iron nail with its North Pole facing the end $A$. Choose the correct statement.

• A. The iron nail becomes a temporary magnet with end $B$ as its South Pole.
• B. The iron nail becomes a temporary magnet with end $A$ as its South Pole.
• C. The iron nail becomes a permanent magnet with end $A$ as its North Pole.
• D. The iron nail becomes a permanent magnet with end $B$ as its North Pole.

Answer 1

The correct option is B The iron nail becomes a temporary magnet with end $A$ as its South Pole.

When an iron nail is brought near a bar magnet, it gets temporarily magnetised. A magnetic pole induces opposite polarity on the end of an iron nail near to it. Therefore, the end $A$ will become the South Pole and $B$ will become the North Pole.