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Fields and Poynting Vector around a Transformer

​
displayed field type
electric field
magnetic field
Poynting vector
total core length ℓ (m)
10
winding radius r (m)
0.6
voltage peak
V
m
(V)
100
current peak
I
m
(A)
1
power factor cos θ
1
0.8
0.5
0.2
This Demonstration shows the electric and magnetic fields and the Poynting vector distribution associated with a simplified transformer. The sinusoidal frequency of the voltage and the current are assumed to be sufficiently low so that the electric and magnetic fields can be analyzed, assuming static conditions. There is just a single turn for both the primary and secondary windings. However, you can vary the core length and winding radius, as well as the voltage, current, and power factor.
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