Question
Distinguish between permanent and temporary magnets.
✓
Answer
The main points of difference between temporary and permanent magnets are:
| Permanent magnets | Temporary magnets |
| 1. Permanent magnets are those magnets that retain their magnetism for a long period of time | Temporary magnets are those magnets that lose their magnetism as soon as the cause producing their magnetism is removed. |
| 2. Materials like iron, nickel, and cobalt are used for making permanent magnets. | Iron materials get magnetized very easily, hence iron is used for making temporary magnets. |
| 3. Bar magnet and horse-shoe magnet are common examples of permanent magnets. | Electromagnets are the common examples of temporary magnets. |
| 4. Permanent magnets are used in magnetic compasses, magnetic door catches, motors, generators, loudspeakers, etc. | Temporary magnets are used in cranes to lift massive loads, electric bells, transformers, circuit breakers |
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