Which of the following properties is False for a bar magnet ?

Options

A. It doesn't produce magnetic field
B. Its like poles repel and unlike poles attract
C. Its poles cannot be separated
D. It points in North - South direction when suspended

Answer

To determine which property of a bar magnet is false, we will analyze each of the given options step by step.

### Step-by-Step Solution:

1. **Understanding the Bar Magnet**:
A bar magnet is a rectangular piece of magnetic material that has a north pole and a south pole. It produces a magnetic field around it.

2. **Analyzing Option 1**:
- The statement is: "The bar magnet does not produce a magnetic field."
- This is **false** because a bar magnet indeed produces a magnetic field that extends from its north pole to its south pole outside the magnet and from south to north inside the magnet.

3. **Analyzing Option 2**:
- The statement is: "Like poles repel and unlike poles attract each other."
- This is **true**. Like poles (north-north or south-south) repel each other, while unlike poles (north-south) attract each other.

4. **Analyzing Option 3**:
- The statement is: "The poles cannot be separated."
- This is **true**. If you cut a bar magnet, each piece will still have a north and south pole. Monopoles do not exist in magnets.

5. **Analyzing Option 4**:
- The statement is: "It points in the north-south direction when suspended."
- This is **true**. A freely suspended magnet will align itself along the north-south direction due to the Earth's magnetic field.

6. **Conclusion**:
- The only false statement among the options is the first one, which claims that a bar magnet does not produce a magnetic field.

### Final Answer:
The false property for a bar magnet is: "The bar magnet does not produce a magnetic field."