Question

Which of the following is true in case of bar magnets?

• A. It always attracts copper and steel. While its like poles repel each other.
• B. Its like poles attract each other, unlike poles repel each other.
• C. Its like poles repel each other, unlike poles attract each other.
• D. Strength of these magnets can be changed.

Answer 1

The correct option is C Its like poles repel each other, unlike poles attract each other.

For a bar magnet, it always attracts iron and steel particles. While its like poles repel each other, unlike poles attract each other. When freely suspended, north pole of magnet points towards north pole of the earth. Since, they do not lose their magnetism they are known as permanent magnets. The poles of these magnets cannot be interchanged like electromagnets.