Inductors
The toroid in Fig. 10.43 has a circular cross section. Determine the number of turns of wire required to produce an inductance of 400 mH. Assume that the cross-sectional area is 3.5 cm2, the average path length is 54.2 cm, and the permeability of cast-steel core is 7.6 × 10−4 H/m.
Figure 10.43 For Problem 10.19.
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