Assume that the commercial iron (99.95 wt% Fe) in Table 20.5 just reaches the point of saturation when inserted within the coil in Problem 20.1. Compute the saturationmagnetization.

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Initial Relative Saturation Flux Density B, [testa (gauss)] 2.14 (21,400) 2.01 (20,100) Hysteresis Loss/Cycle |J/m* (erg/cm)] 270 (2700) 40 (400) Resistivity p (N-m) Composition Permeability (wt %) Material Commercial iron ingot Silicon-iron (oriented) 45 Permalloy 99.95FE 1.0 x 10-7 150 97Fe, 3Si 4.7 x 10-7 1400 55FE, 45NI 4.5 x 10-7 2500 1.60 120 (16,000) (1200) 79NI, 15Fe. 5Mo, 0.5Mn 48MnFe,O4. 52ZnFe,O4 36NIFE,O4. 64ZnFe,O4 6.0 x 10-7 Supermalloy 75,000 0.80 (S000) Ferroxcube A 2000 1400 0.33 (3300) 0.36 -40 (-400) -35 Ferroxcube B 650 107 (3600) (-350)