Задача 31176.

How long must take the wire with a diameter of 0.1 mm to produce a single-layer coil with inductance 1 mH? The cross sectional area of \u200b\u200bthe solenoid 7.5 cm ^ 2. The core is absent.

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

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