Physics, asked by yashikajanaria, 1 year ago

what is permanent magnet and electromagnet ? give two uses of each

Answers

Answered by Adishra

Permanent magnet are those who create their own magnetic field.
In electromagnet magnetic field is produced by electric current.

Hope it may helps u!!!

arorarushil8gmailcom: Permanent magnet are those which found naturally and have its magnetic force all the time .It is used in speakers and also in some trains.
electromagnetic are those which are man made and they have only magnetic force when a electric current is passed and they are not permanent used in trash centres

arorarushil8gmailcom: heres your ans yashika

yashikajanaria: its too long

arorarushil8gmailcom: ok

yashikajanaria: ok?

arorarushil8gmailcom: u can cut some part

yashikajanaria: hmm..fine

arorarushil8gmailcom: ok

arorarushil8gmailcom: ^_^

Answered by arorarushil8gmailcom

Permanent magnet is not so strong, but electromagnet is very strong.

2. The strength of permanent magnet can't be changed, but that of electromagnet can be changed by changing the number of turns or the amount of current.

3. Permanent magnet has permanent magnetism, but the magnetism in electromagnet is temporary.

4. The polarity of permanent magnet can't be changed, but that of an electromagnet can be changed by changing the position of positive and negative termianls.

arorarushil8gmailcom: is it helpful

yashikajanaria: hmm..

arorarushil8gmailcom: thnks for marking it as brainlest

yashikajanaria: welcome..u should also..

arorarushil8gmailcom: ^_^

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