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Chapter 10

Q. 10.1

Establish the constants H_{0} and H_{m} for M530-50A material whose permeability versus magnetic field intensity is shown in Figure 10.2.

Step-by-Step

Verified Solution

Take two data points at:

H = 400, \mu _{r} = 2600 A/m

H = 5000, \mu _{r} = 255 A/m

Inserting both values into Equation 10.8:

\mu _{r}=\frac{H_{m}}{H+ H_{0}}    (10.8)

2,600=\frac{H_{m}}{400+ H_{0}}

 

255=\frac{H_{m}}{5,000+ H_{0}}

Solving yields H_{0} = 100 A/m and H_{m} = 1.3 \times 10^{6} A/m.

10.2