Physics
Differentiate between permanent magnet and temporary magnet. Give examples wherever applicable.
Magnetism
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Answer
Differences between permanent magnet and temporary magnet:
| S. No. | Permanent magnet | Temporary magnet |
|---|---|---|
| 1. | Permanent magnets show magnetic properties all the times. | Temporary magnets show magnetic properties as long as the magnetising force is present around it. |
| 2. | Its magnetic strength cannot be changed. | Its magnetic strength can be changed. |
| 3. | Its polarity cannot be changed. | Its polarity can be changed by reversing the direction of the magnetising force. |
| 3. | Example : Bar magnet and horseshoe magnet. | Example : Electromagnets and soft iron rods. |
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