Question

A chain of steel nails and a chain of iron nails hang from the strong magnet. The chains are then carefully removed from the magnet
What happens to the chains?

• A. Both chains fall apart
• B. Both chains stay together
• C. Only the chain of iron nails falls apart
• D. Only the chain of steel nails falls apart

Answer 1

The correct option is D Only the chain of steel nails falls apart

Given: Chain of steel and iron hang from magnet

Solution: When the magnet is removed then only the chain of steel nails fall apart and not of iron because retentivity of steel is less than that of iron which means that the ability of steel to retain or resist magnetization is less .So, steel chain will fall apart.

Hence the correct answer is D