Задача 30236.

By wire bent into a circle, a current flows. The magnetic field in the center of the circle H1 = 50 A / m. Without changing the current in a conductor, he gave the form of a square. Determine the strength of the magnetic field H2 at the point of intersection of the diagonals of the square.

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

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