Why are permanent magnets not used in cranes to lift heavy loads?
A few pieces of similar looking magnets and iron are lying on a table. can you separate them with the help of a piece of iron? explainhow
- Cranes uses electromagnets rather than permanent magnets.
- The electromagnets can get magnetic nature as and when required so that they can lift heavy loads.
- After lifting and moving to other place, the electromagnet can release the load by losing the magnetic property.
- But, in the case of permanent magnets, it is not possible to release the load because the permanent magnets never loses their magnetic property.