Задача 00028.

The long solenoid through which current flows contains N = 500 turns. Determine the length of the solenoid if the magnetic field strength on its axis is H = 100 A / m, and the current strength in it is I = 0.4 A.

Detailed solution with a brief record of the conditions, formulas and laws used in the decision, the conclusion of the calculation formula and the answer.
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