Question

Which of the following is/are true regarding magnetic fields?

I. Magnetic field lines separate magnetic poles.
II. Magnetic field lines are spaced farther apart at the magnetic poles.
III. Magnetic fields are strongest at the magnetic poles.
A. II only B. I, II, and III
C. I only
D. III only

Answer 1

Here is your answer

D. III only

REASON:

1) The degree of curveness at the poles is maximum.

2) The density of field lines at and near poles is maximum.

Thus, magnetic field strength is maximum at the magnetic poles.

HOPE IT IS USEFUL