Give an example of permanent magnet and temporary magnet.

Explanation

### Step-by-Step Solution

1. **Understanding Permanent Magnets**:
- Permanent magnets are materials that maintain their magnetic properties over a long period of time. They do not require any external power source to exhibit magnetism.

2. **Examples of Permanent Magnets**:
- Common examples of permanent magnets include:
- **Bar Magnet**: A rectangular piece of magnetized material that has a north and south pole.
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