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Electromagnet

Bar Magnet or Permanent Magnet

It is a temporary magnet

It is a permanent magnet

They are usually made of soft materials

They are usually made of hard materials

It can produce very strong magnetic force

It produces comparatively weak magnetic force

It's magnetic strength can be changed

It's magnetic strength can not be changed

It's polarity can be changed.

It's polarity can not be changed.

Example - Solenoid - A wire wound across a nail connected to a battery

Example - Bar Magnet

 

  1. Class 10
  2. Chapter 13 Class 10 - Magnetic Effects of Electric Current

About the Author

CA Maninder Singh's photo - Founder at Teachoo
CA Maninder Singh
CA Maninder Singh is a Chartered Accountant for the past 11 years and a teacher from the past 11 years. He teaches Science, Accounts and English at Teachoo