Question

Very short-answer questions
1. When two magnets are placed near each other what will happen?
2. Name the material which when magnetised remains a magnet for long.​

Answer 1

Answer:

1. When two magnets are brought near each other, like poles repel; opposite poles attract. When a magnet is brought near a piece of iron, the iron also gets attracted to the magnet, and it acquires the same ability to attract other pieces of iron.
2. The difference being that magnetically hard materials will remain magnetised indefinitely, unless they are demagnetised by an opposing magnetic field, raised above their curie temperature or allowed to corrode.

Answer 2

Answer:

1.If unlike polesare brought

together they will attract, but if like poles are brought together they will repel.

2.Magnets made from alloys of iron, boron and neodymium.