which magnet will you choose among permanent magnet and electro magnet for industrial purpose ? justify your answer
Answers
Well, for this, I think using electromagnet for industrial purpose is most suitable than natural magnet as using an electromagnet (temporary magnet) has many advantades -
( i ) We can adjust the strength of its magnetic field by increasing/decreasing the amount of electricity suppied to it.
( ii ) Natural magnets may loose their magnetic properties in the due course of time..., but this won't happen to electromagnets as they act as an magnet only when electricity is supplied to it.
( iii ) Handling (storing) natural magnets is not so easy as they can attract any magnetic substance nearby.... but this won't happen in the case of electromagets as when the supply elecricity cut, it behaves like an ordinary substance.
Well, we can summerize its benefits in short - its magnetic field can be adjusted, can be shut down when not needed, prevents accidents....
Hope this helps...
@PoojaBBSR
Electric magnets have high electric field.
These have aligned parts. These can be modified in any desired shape.
the magnetic field of these can be controlled at any time. The magnets can get high magnetic fields varying from -ve to 0 and positive.
it is not easy to handle natural magnets and can't be used easily by cranes for lifting purpose as they will not drop.
Electromagnets don't loose their strength when heated .
Permanent magnets are not usable after time.