Задача 30397.

The inductance of the coil with a length of 1 m and cross-sectional area of 20 cm ^ 2 is 0.4 mH. Determine the strength of the current in the solenoid, whereby the volume energy density of the magnetic field inside the solenoid is equal to 0.1 J / m ^ 3.

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