Question

In the above problem find the magnetic field a near the ends of the solenoid

Answer 1

Answer:

Magnetic field near the end of solenoid

The magnetic field strength on the axis going right through the solenoid, in the place on the end of the solenoid is then the field of an infinitely long solenoid minus half of it because half is missing, and so the field strength is half as big on the ends (but right in the middle).