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WOLFRAM|DEMONSTRATIONS PROJECT

Electric and Magnetic Fields near a Transmission Line

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displayed field type
electric field
magnetic field
Poynting vector
gap length g (mm)
500
conductor diameter d (mm)
100
voltage peak
V
m
(V)
10000
current peak
I
m
(A)
100
power factor cos θ
1
0.8
0.5
0.2
This Demonstration shows the fields in the region near a transmission line consisting of a pair of cylindrical conductors. The electric and magnetic fields and the Poynting vector distribution are shown by colors and arrows. The sinusoidal frequencies of the voltage and current are assumed to be sufficiently low for the electric and magnetic fields of the slowly changing configurations to be analyzed by assuming static behavior. You can vary the gap and cylinder diameter, as well as the voltage, current, and power factor of the transmission line.
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