Magnetic field intensity at a point inside solenoid
Answers
The magnetic field at any point in space can be computed by summing over the magnetic fields produced by each turn of wire in your solenoid. It turns out that for an infinitely long solenoid, with the same number of turns per unit length of the solenoid, the magnetic field is constant in strength everywhere inside.
The magnetic field at any point in space can be computed by summing over the magnetic fields produced by each turn of wire in your solenoid. It turns out that for an infinitely long solenoid, with the same number of turns per unit length of the solenoid, the magnetic field is constant in strength everywhere inside. If your solenoid has ends, then you can think of it as an infinitely long solenoid minus the end parts that stretch off to infinity. 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).
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