Question

How can magnets lose their properties?

• A. If they are heated
• B. If they are hammered
• C. If they are dropped from height
• D. All of these

Answer 1

Answer: (A), (B), (C)

The correct option is D. All of these

Permanent magnets can lose their magnetism if they are dropped or banged on enough to bump their domains out of alignment. Heating a magnet above the Curie temperature causes the magnetic domains to be disrupted permanently. Mild heating causes a reduction in the magnetism. However, when it cools the full magnetism is restored. Thus, a magnet can lose its properties if it is heated, hammered or if it is dropped from a height.