03-18-2019, 09:47 PM
 bistander Gold Member Join Date: Apr 2015 Posts: 1,712
Common definitions

Quote:
 Originally Posted by Aaron What do you mean "now" he says that - that is all he has said and he has said that many times. No load best results and if speeding it up, will unload the motor even more but generator coil output goes down. Makes perfect sense and indicates that you have been arguing with him in the 3 battery thread but have not comprehended a word he has said - or just don't care and want to continue to make it look like what he says doesn't make sense even though you just don't get it. Do you consider a short circuited generator coil to be a load? There is obviously current in the coil and it creates a counter opposing magnetic field - a perfect demonstration of Lenz's Law.
No-load = open circuit which means zero current.

Short circuit = zero resistance connection of output terminals. Result is "short circuit" current and zero voltage.

No-load results in "no-load" voltage and zero current so is zero power output.

Short circuit results in current (usually maximum current) and zero voltage so is zero power output.

Short circuit typically is considered loaded. The load is the coil itself because there is current flowing in the coil and the coil has resistance, so IsquaredR power loss in the coil, but zero power to any external load due to the shorted terminals.

Whenever I've read about the speed up under load or watched video demonstrations, the starting condition was no-load meaning coil terminals open circuit. Then the loaded condition had a resistance (often light bulb) across the coil terminals or in some cases, the loaded condition was simply a short circuit across the coil terminals.

How am I mistaken here?

bi
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