Electrical Engineering Articles

Tag Archive for: electrical engineering

Milli-Ohm

The Poor Man’s Milli-Ohm Meter

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Introduction In a previous article on measuring battery internal resistance, a simple technique for low-resistance measurement was outlined. In this article,…
electromagnetic computations

How to Use Duality in Computational Electromagnetic Problems

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Some weeks ago I happened across a post that caught my eye. Dale asked a question about the number of photons in an electromagnetic field. His question…
Split Electric Fields

Split Electric Fields in Electrodynamics: Capacitor and Antenna

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Abstract: The analysis of the two kinds of electric fields, namely the irrotational and non-conservative, is extended to electrodynamics, as exemplified…
electric potential

Introduction to Electric Vector Potential and Its Applications

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Main Point: The electric vector potential offers a  means of determining the non-conservative component of mixed stationary or quasi-stationary electric…
perpetual motion machines

Why We Don’t Discuss Perpetual Motion Machines (PMM)

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Authorship Contributions From AnorlundaYou may want to believe the article you read, or the video you saw, or you may be very proud of your PMM invention.…
circuitanalysis

The What and Why of Circuit Analysis Assumptions

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Probably everyone reading this article already has education on elementary circuit analysis (CA) and many of us are much more advanced. Typically, the…
ohmslaw

Learn Why Ohm’s Law Is Not a Law

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At first, I wanted this title to say “Ohm’s law is not a Law.”  But someone else used that phrase in a recent PF thread, and a storm of protest…
acpoweranalysisp3

AC Power Analysis: The 4 Levels of Cyber Resilience

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 Power system security is much too big a topic for this article.  But I can squeeze in a few points about vulnerability to cyber attacks.…
acpoweranalysisp2

Intro to AC Power Analysis: Network Analysis

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 Let me use the terms “power grid” and “network” interchangeably. What is the Power Grid Required to Do?Deliver energy to customers,…