What is the difference between Electro magnet and Permanent magnet (At least five) ??
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Electromagnets are non permanent magnets. They got magnetic field because of applied electric field. They lost their magnetic field which was around that, when the applied electric field is stopped. permanent magnets have magnetic property always with it.
Permanent magnetic property loses when we heat the material. It cannot be regained once again.
But electromagnets are capable of regaining its magnetic properties.
Permanent magnetic property loses when we heat the material. It cannot be regained once again.
But electromagnets are capable of regaining its magnetic properties.
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1) electromagnet is made of soft iron and permanent magnet is made of steel.
2) the magnetic field strength can be changed in electromagnet but in permanent magnet strength of magnetic field cannot be changed.
3) the magnetic field of the electromagnet can be very strong but the magnetic field of the permanent magnet is not so strong.
4) in the electromagnet the polarity of the electromagnet can be reversed but the polarity of the permanent magnet cannot be reversed.
5) the electromagnet can easily be demagnetised but the permanent magnet cannot be easily demagnetised..
2) the magnetic field strength can be changed in electromagnet but in permanent magnet strength of magnetic field cannot be changed.
3) the magnetic field of the electromagnet can be very strong but the magnetic field of the permanent magnet is not so strong.
4) in the electromagnet the polarity of the electromagnet can be reversed but the polarity of the permanent magnet cannot be reversed.
5) the electromagnet can easily be demagnetised but the permanent magnet cannot be easily demagnetised..
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