Magnetic field lines between two unlike poles of magnets

Why are magnetic field lines crowded near the poles of the magnet?

The three diagrams in the following figure show the lines of force (field lines) between the poles of two magnets. Identify the poles A, B, C, D, E and F.

The strength of the magnetic field between the poles of an electromagnet would be unchanged if :

When the wire loop is rotated in the magnetic field between the poles of a magnet the frequency of emf is

when the wire loop is rotated in the magnetic field between the poles of a magnet the direction of emf changes once in every

(a) Describe an activity to show with the help of a compass that magnetic field is strongest near poles of a bar magnet. (b) Mention the direction of magnetic field lines (i) inside a bar magnet and (ii) ouside a bar magnet.

The distance between two poles of magnets is called as