Question

If magnetic field lines are spread up far apart, what does that mean? Select the correct answer.

1. The magnetic field is strong.

2. The magnet is permanent.
3. The magnetic field is increasing.
4. The magnetic field is weak.

Answer 1

4. The magnetic field is weak.

Explanation: The density (spacing) of magnetic field lines represents field strength — closely packed lines mean a strong field, widely spaced lines mean a weak field.