Задача 30485.

Determine the volumetric energy density of the magnetic field of the solenoid, if a current of 20 A flows through the winding, the number of turns per unit length n = 15 vit/cm. The solenoid core is made of non-magnetic material.

Detailed solution with a brief record of the conditions, formulas and laws used in the solution, derivation of the calculation formula and answer.
If you have any questions regarding the solution, please write. I try to help.