January 2014
Intermediate to advanced
567 pages
23h 13m
English
Content preview from Principles of Analog Electronics
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Physical and Electrical Background
49
μ
0
being the absolute magnetic permeability of the empty space a universal con-
stant equal to 4π* 10
-7
[Tm/A], and μ
r
the relative magnetic permeability,itsvalue
depending on the material.
In SI units
B
is Tesla,
[]
T
(Nikola Tesla, Croatian-born Serbian-American inven-
tor, 1856 –1943).
The presence of a strong permeability means the material is made of some-
thing that can align strongly to an external magnetic eld. To understand how the
same vector
H
can produce different results in different materials, we consider
two materials that are diamagnetic and paramagnetic (Figure 2.29).
Diamagnetic materials a ...
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