What does the closeness of magnetic field lines indicate?

Subject: General Science

Topic: Magnetic Effects of Electric Current

Options:

1. Option A: The magnetic field is weaker
2. Option B: The magnetic field is stronger
3. Option C: The magnetic field is zero
4. Option D: The magnetic field is uniform

Correct Answer:

Option B: The magnetic field is stronger

Explanation:

The relative strength of the magnetic field is shown by the degree of closeness of the field lines. The field is stronger where the field lines are crowded.