
29-6 Electrical Variables
Applied field, H (A/m) H
cs
B
rs
B
r
H
c
H
M
H
M
Induction, B (Wb/m
2
)
΄
˝
FIGURE 29.5 Major and minor dc hysteresis loops for a typical so ferromagnet. Labeled points of interest are
described in the text.
Applied field, H (A/m)
DC
60 Hz
100 Hz
300 Hz
Induction, B (Wb/m
2
)
FIGURE 29.6 With increasing test frequency, coercivity for a so ferromagnet also increases.