Choose the correct statement:

Options

A. Lines of force are not imaginary lines
B. Lines of force cannot be mapped on paper
C. Lines of force do not intersect each other
D. Lines of force always intersect each other

Answer

**Step-by-Step Solution:**

1. **Understanding the Statements**: We have four statements regarding lines of force. We need to analyze each statement to determine which one is correct.

2. **Analyzing Statement 1**: The first statement claims that "Lines of force are not imaginary lines." This is incorrect because lines of force are indeed considered imaginary lines. They represent the direction of the magnetic field but cannot be seen directly.

3. **Analyzing Statement 2**: The second statement claims that "Lines of force cannot be mapped on paper." This is also incorrect. We can represent lines of force on paper, for example, by drawing magnetic field lines around a magnet.

4. **Analyzing Statement 3**: The third statement claims that "Lines of force do not intersect each other." This statement is true. If two lines of force were to intersect, it would imply that at the point of intersection, the magnetic field would have two different directions, which is not possible.

5. **Analyzing Statement 4**: The fourth statement claims that "Lines of force always intersect each other." This is false, as established in the previous step.

6. **Conclusion**: After analyzing all statements, the correct statement is that "Lines of force do not intersect each other."

**Final Answer**: The correct statement is: "Lines of force do not intersect each other."

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