(Solved): The diagram indicates a magnetic circuit with a steel core, in grey, and a small air gap. The lengt ...

The diagram indicates a magnetic circuit with a steel core, in grey, and a small air gap. The length of the air gap is exaggerated in the drawing. The steel core has a cross sectional area of \\( 30 \\mathrm{~mm}^{2} \\) and a relative permeability of 750 . The effective length of the magnetic path in the steel is \\( 64 \\mathrm{~mm} \\). The reluctance of the airgap is \\( 10600000 \\mathrm{~A} / \\mathrm{Wb} \\). The number of turns shown in the drawing is correct. Calculate the DC current \\( I \\) required to achieve the flux indicated.