Posted by MarkB_MI on December 19, 2020 at 07:24:53 from (174.230.3.187):
In Reply to: Free energy posted by teddy52food on December 19, 2020 at 07:12:23:
No Teddy, it's not free. Thermodynamics tells us there's no free lunch, even though there's always a crackpot who insists otherwise.
What you're doing is counting the transient energy release when the circuit is opened, but you've forgotten to count the transient energy storage when the circuit is first closed. They are exactly the same. When you close the circuit, the initial current is zero but slowly increases until it reaches a steady state which is limited by the resistance of the conductor. The energy stored in the coil at steady-state is 1/2Li2.
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Today's Featured Article - My Ford Golden Jubilee - by Troy Estes. This article is about my '53 Ford Jubilee and a story that starts with taking the tractor to my brother's Starter/Alternator Rebuilding shop for a wiring fix. The generator was shot as well as all the wiring. I dropped off the tractor expecting a transformation from a 6 volt to a 12 volt system utilizing the original generator housing, and a total rewiring of the whole tractor. The front end center pin bushing was worn also so I ask that they replace it if they had time. Well, that’s wha
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