Lag1989 problem number 17.43

Lag1989 problem number 17.43

On an iron ring of small circular cross section, 500 turns of thin wire are evenly wound in one layer. The average ring diameter is 200 mm. At what current strength I in the winding, the magnetic induction B in the core will be equal to 1.00 T. When solving the problem, use the curve shown in the figure.

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