Ampere’s Circuital Law
SI units
Inet : is the net Ampere Turns (AT) enclosed within N-turns conductor.
is the mean length of closed path (m
H : Field Intensity (AT/m).
Permeability
FProperty that tell us how easily a magnetic
field can flow through a material
.
It is usually expressed in terms of relative permeability mr
The permeability is also the proportionality constant between an applied field intensity (H) and the resulting Magnetic Flux Density (B) : B = mH Þ m = mo. mr & mo = 4p´10-7.
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