Touch just about any converter and you'll notice that it's warm. That heat is coming out of your pocket. No, it's not much, but when you multiply it times the number of converters in the typical house, then multiply that time the number of houses in the country, it's a significant amount of wasted power.
In case you want to get technical as to what's going on: Any idle transformer is an almost purely inductive load. So there is current traveling through it, but almost no energy is used because the current is ninety degrees out of phase with voltage. ALMOST ninety degrees, that is. There is enough resistance in the transformer to generate heat. Heat is also generated in your house wiring as well as the power companies distribution line. That's where the power goes.
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Today's Featured Article - Third Brush Generators - by Chris Pratt. While I love straightening sheet metal, cleaning, and painting old tractors, I use every excuse to avoid working on the on the electrics. I find the whole process sheer mystery. I have picked up and attempted to read every auto and farm electrics book with no improvement in the situation. They all seem to start with a chapter entitled "Theory of Electricity". After a few paragraphs I usually close the book and go back to banging out dents. A good friend and I were recently discussing our tractor electrical systems when he stated "I figure it all comes back to applying Ohms Law". At this point
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