Tag Archive for: electrical engineering
The Poor Man’s Milli-Ohm Meter
/
0 Comments
Introduction
In a previous article on measuring battery internal resistance, a simple technique for low-resistance measurement was outlined. In this article,…
How to Use Duality in Computational Electromagnetic Problems
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 in Electrodynamics: Capacitor and Antenna
Abstract: The analysis of the two kinds of electric fields, namely the irrotational and non-conservative, is extended to electrodynamics, as exemplified…
Introduction to Electric Vector Potential and Its Applications
Main Point: The electric vector potential offers a means of determining the non-conservative component of mixed stationary or quasi-stationary electric…
Why We Don’t Discuss Perpetual Motion Machines (PMM)
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.…
The What and Why of Circuit Analysis Assumptions
Probably everyone reading this article already has education on elementary circuit analysis (CA) and many of us are much more advanced. Typically, the…
Learn Why Ohm’s Law Is Not a Law
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…
AC Power Analysis: The 4 Levels of Cyber Resilience
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.…
Intro to AC Power Analysis: Network Analysis
Let me use the terms “power grid” and “network” interchangeably.
What is the Power Grid Required to Do?Deliver energy to customers,…