Differentiate between following:
Permanent magnet and temporary magnet

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Solution

Permanent Magnet Temporary magnet
1.These magnets are made from steel or combination of nickel, iron or cobalt.
When current is passed through a conducting wire, magnetic field is generated around this wire, is known as temporary magnet.
2. The strength of magnet depends upon the nature of the material used in manufacturing of it. 2. The strength of magnet depends upon the amount of flow of current
3. Once magnetic properties are lost, permanent magnets become useless 3. Magnetic properties can be removed.
4. It doesn’t require a continuous supply of electricity. 4. To maintain its magnetic field, we require a continuous supply of electricity
5. Magnetic poles are fixed. 5. The poles of magnet can be changed if we change the direction of flow of current.

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Permanent Magnet	Temporary magnet
1.These magnets are made from steel or combination of nickel, iron or cobalt.	When current is passed through a conducting wire, magnetic field is generated around this wire, is known as temporary magnet.
2. The strength of magnet depends upon the nature of the material used in manufacturing of it.	2. The strength of magnet depends upon the amount of flow of current
3. Once magnetic properties are lost, permanent magnets become useless	3. Magnetic properties can be removed.
4. It doesn’t require a continuous supply of electricity.	4. To maintain its magnetic field, we require a continuous supply of electricity
5. Magnetic poles are fixed.	5. The poles of magnet can be changed if we change the direction of flow of current.