Задача 31033.

At 0.25 m long solenoid having a number of turns 500, a current flows 1 A cross-sectional area of 15 cm ^ 2. The coil is inserted into the iron core. Find the energy of the magnetic field of the solenoid.

Detailed solution shorthand terms, formulas, laws used in the decision, the withdrawal of the calculation formula and the response.
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