Ali Lama Posted January 19, 2021 Posted January 19, 2021 Do I have it right that charges move from the area of higher potential to the lower potential. Would this be the reason why charges move away from the source towards the load? Is the source really the highest potential in an electrical system? Or is it both the highest and also the lowest potential? Charges regardless what we consider to be either positive or negative doesn't change what is happening in terms of their movement. Then we have the dynamics of not just the movement of charges but the movement of energy itself as it propagates. Energy propagates in a different vector. Energy does not seem to care about the direction of charges but seem to only care to go from the source to the load or is it that it also goes to the source as well, both out from the source and also and into the source? What about if you are standing at the load. There you see charges coming towards you from one side and energy is coming to you with it and going away from the other side, when going away what happens to the direction of propagation of energy.. are they less energy but still there but entering the source also or how does that work? Furthermore does energy really propagate by means of EM waves, EM oscillation? charges accelerating? If that be the case, a true DC system is the most ideal form of energy propagation as far as sufficiency of energy transfer goes, less loss, flat line, no oscillation. I don't think flat line implies infinite frequency. More question. When we see light coming out of the light bulb, such visible EM radiation is at very high frequency. 10¹⁴ Hz while the frequency entering it is 60 Hz. Does the element in the light bulb transform such low frequency into such high frequency instantly?
swansont Posted January 19, 2021 Posted January 19, 2021 59 minutes ago, Ali Lama said: Do I have it right that charges move from the area of higher potential to the lower potential. Would this be the reason why charges move away from the source towards the load? Positive charges. Similar to mechanical systems, they are moving to a lower energy state (“downhill” in an electric sense) 59 minutes ago, Ali Lama said: Furthermore does energy really propagate by means of EM waves, EM oscillation? It can. 59 minutes ago, Ali Lama said: charges accelerating? If that be the case, a true DC system is the most ideal form of energy propagation as far as sufficiency of energy transfer goes, less loss, flat line, no oscillation. I don't think flat line implies infinite frequency. In the case of EM waves, there’s no charges moving transferring energy and DC only gives static fields. Zero frequency. 59 minutes ago, Ali Lama said: More question. When we see light coming out of the light bulb, such visible EM radiation is at very high frequency. 10¹⁴ Hz while the frequency entering it is 60 Hz. Does the element in the light bulb transform such low frequency into such high frequency instantly? The details depend on the kind of bulb, but “converting frequencies” is not part of the physics model. The input electrical frequency doesn’t matter. The input electricity could be DC.
Sensei Posted January 19, 2021 Posted January 19, 2021 (edited) 1 hour ago, Ali Lama said: When we see light coming out of the light bulb, such visible EM radiation is at very high frequency. 10¹⁴ Hz while the frequency entering it is 60 Hz. Does the element in the light bulb transform such low frequency into such high frequency instantly? 60 Hz is AC frequency in USA and couple others countries where is used such standard. In the Europe there is used 50 Hz AC. LED uses DC mostly. 230V/110 VAC is converted to 5-12 VDC first and no more pulsates. Frequency of photons have nothing to do how energy was delivered. You eat food and you are emitting photons in MW and IR spectrum visible by IR camera. BTW, try recording light bulb by smartphone camera with enabled 60 fps mode (or more) and you will see these pulses. Human eye is unable to see it because they are too fast. 60 Hz means there will be 120 pulses per second. Light bulb emits light no matter in which direction electrons fly. Edited January 19, 2021 by Sensei
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