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| 1. |
Difference between permanent magnet and electro margnet ? |
| Answer» Permanent magnet:- 1.It has the weak force of attraction.2.we cannot change the pole of permanent magnet.3.and we also cannot change its magnetic force because it is permanent.Electro magnet:- 1. It is also known as temporary magnet. it has the strong force of attraction.2.we can change the position of poles.3.we can change its magnetic force by passing more current. | |