Physics
What is an artificial magnet? State two reasons why do we need artificial magnets?
Answer
An artificial magnet is a magnetized piece of iron or any other magnetic material.
Examples of artificial magnets are bar magnet, horse shoe magnet, magnetic needle and magnetic compass.
We need artificial magnets because —
- Natural magnets are of irregular and odd shapes.
- Natural magnets are not magnetically strong enough for use.
Related Questions
What is a natural magnet? State two limitations of a natural magnet?
How will you test whether a given rod is made of iron or copper?
[Hint: Iron rod gets magnetized when placed near a bar magnet by magnetic induction, while copper rod does not get magnetized]
Explain the term induced magnetism.
What is a lodestone?