From the dc magnetization curve of figure it is possible to calculate the relative permeability r =
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From the dc magnetization curve of figure it is possible to calculate the relative permeability μr = Bc/(μ0Hc) for M-5 electrical steel as a function of the flux level Bc. Assuming the core of figure to be made of M-5 electrical steel with the dimensions given in Example 1.1, calculate the maximum flux density such that the reluctance of the core never exceeds 5 percent of the reluctance of the total magnetic circuit.
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