Task 40743.
The first layer of two-layer coil is wound from a wire diameter of 0.4 mm and it flows a current of 1 A, the second layer - of a wire diameter of 0.8 mm and it flows a current of 4 A. Find the magnetic field inside the solenoid when currents flowing in the windings in one direction.
Detailed solution shorthand terms, formulas and laws used in the decision, the withdrawal of the calculation formula and the response.
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