Question

Why the magnetic fields strongest at the poles

Answer 1

Answer:

The magnetic field around a solenoid depends on core, turns and current. For a magnet, the flux lines repel each other so the field will be weaker at the sides. But they are concentrated at the poles, where they originate, so the field is stronger.

Answer 2

Answer:

The magnetic field around a solenoid depends on core, turns & current. For a magnetic, the flux lines repel each other so the field will be weaker at the sides. But they are concentrated at the poles, where they originate so the magnetic field is strong at the poles