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An electronic system, with closed loop current flow, and relative electrical potentials present across electrical components.
2
votes
How does conservation of charge explain Kirchhoff's current law?
To offer a more mathematical explanation, this follows from the continuity equation
$$\frac{\partial \rho}{\partial t} + \nabla\cdot \mathbf{J}=0. $$
A wire is macroscopically neutral, and therefore, …
3
votes
Is "voltage across an inductor" actually real, or a convenient engineer trick?
If we define a "voltage" as a "difference in electrostatic potential between two points", then it is true that there is no "voltage" across an inductor, because if
$$\oint_C \vec{E}\cdot \mathrm{d}\ve …
7
votes
Accepted
3 Aspects of Voltage that contradict each other
Basically the problem here is using the same words for similar and related concepts that are nonetheless not identical. The fundamental concept that is behind "voltage" is the concept of electric pote …