Practicing Success

Target Exam

CUET

Subject

General Test

Chapter

General Knowledge

Topic

Physics

Question:

Which of the following is false w.r.t. magnetic field lines ?

Options:

Magnetic field lines are closed curves. 

The direction of the magnetic field at some point is taken to be the direction in which the north pole of a magnetic compass needle points.

If magnetic field lines are parallel and are also equidistant, they represent zero field strength.

The strength of magnetic field is shown by how close the magnetic field lines are.

Correct Answer:

If magnetic field lines are parallel and are also equidistant, they represent zero field strength.

Explanation:

If magnetic field lines are parallel and are also equidistant, they do not represent zero field strength.