Physics
Explain the following:
When two pins are hung by their heads from the same pole of a magnet, their pointed ends move apart.
Answer
When two pins are hung by their heads from the same pole of a magnet, their pointed ends move apart because the iron nails by magnetic induction gets magnetized and develop same poles. As we know that like poles repel each other hence, the two pointed ends of the nails repel each other.
Related Questions
How will you test whether a given rod is made of iron or copper?
[Hint: Iron rod gets magnetized when placed near a bar magnet by magnetic induction, while copper rod does not get magnetized]
Explain the term induced magnetism.
Explain the following:
The north end of a freely suspended magnetic needle gets attracted towards a piece of soft iron placed a little distance away from the needle.
Explain the following:
Several soft iron pins can cling, one below the other, from the pole of a magnet.