Right after I posted this I finally read Ronburk's post. Except for details like battery vs capacitor and a mass vs a flywheel, we're pretty much saying the same thing.
The original question was about how the inductor works in an LC circuit. Consider what happens over the course of a complete...
We could avoid this dichotomy by expressing Power Spectral Density as Power Log(spectral) density, i.e., instead of
W/(m^2 * delta(nm)),
use
W/(m^2 * delta(log(nm)))
This should give the same shape curve as
W/(m^2 * delta(log(THz)))
because
log(nm) = log(c)-log(THz),
thus removing the...
Although once it's wired up with a capacitor it connects to 1-phase power, this is really a 2-phase motor. The capacitor in series with one winding creates the 2nd phase. The description refers to it as a "run" capacitor, not a "start" capacitor, and the motor type as "permanent split...
What I got from the hot-wire and transformer post is that the controller is not putting out pulsating DC. That's one technique that has been used for monitoring the actual motor speed, by using the remnant field flux to use the motor for a tachometer between current pulses. Thus my comment that...
I see... Looked at a blog that mentioned RC enthusiasts use the Harbour Freight product (43060) on the primary side of a stepdown transformer to control a stainless steel wire heater for cutting styrofoam. The device might be a lot less sophisticated than I expected. If you do use it, you...
I doubt the need to derate a light dimmer for the purpose, unless the concern is how long the heater takes to warm up and increase its resistance. Incandescent lamps initially draw roughly 10x steady-state current if switched on at the peak of a line cycle (possibly more than this for quartz...
New to this forum, and didn't see any "edit previous post" button. I mentioned above that the power line's impedance (I meant at frequencies of a few KHz or higher) is very dependent on loads connected across the line. It occurs to me that in the recommended installation there would be more...
I found the TV ad for this device implausible. For it to work by sending any kind of signal over the house wiring would require the target organism to have some kind of receiver, responsive to the radiated signal. Three types of radiated signal come to mind: electric field, magnetic field, and...