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    Amps higher than voltage possible?

    negative resistance components??? what would that be? superconductors?
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    Grounding, earths electrical field

    The upward lightning is cool. I didn't know about that. Have they determined why it happens? Does it have to do with whether the ground is positive or negative compared to the cloud? I get that lightning is caused by ionization, but I guess the comparison is that both seek to ground out its...
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    Amps higher than voltage possible?

    Ah yeah. so I guess mathematically the amount of amps can by far exceed the voltage if the ohms is truly that low... I guess in practice though anything with that little resistance would probably be burned up unless it was rather large in diameter. There must be in practice some limit to the...
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    Grounding, earths electrical field

    Hi guys, I have a question. So we all know that voltages seek a path to ground and we hold that the ground is considered 0voltage (electrically neutral) compared to say a power line or a lightning bolt. The hot wire or lightning will seek to balance their charges out and equalize. However, It...
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    Amps higher than voltage possible?

    Hi guys, I have a question. From how I understand it Voltage and Amps are proportional to each other. e.i. 120V/8R= 15amp. In a short circuit you could have 120v and 120A (is it possible to pull higher amps off a powerline? assuming the circuit could handle the amps without burning up)...
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    AC power generation and transformers

    Ok makes sense thanks. I'd imagine the amount of grounding needed for a power generation plant or even large transformers must be very deep to keep it safe. Also, when they are running how large can the electromagnetic field be? I wonder how many feet away you would need to be to not get fried...
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    AC power generation and transformers

    Hi guys, I have a question. When electricity is generated how is it determined which side of the coal in the generator is the hot and which side is the neutral? Since AC fluctuates in polarity wouldn't both leads be essentially electrified? With that said, if the hot path was severed from the...
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    Capacitors in parallel effects on frequency

    Thanks Hevans! I get it now. Yes, I was under the assumption that the frequencies vanish or are totally removed as opposed to attenuated to have less volts/current. Why is it that in diagrams of a high pass filter they often show the capacitor before the resistor? wouldn't it make sense for it...
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    Capacitors in parallel effects on frequency

    Ok... so this was my first time using this editor that I found. I am a novice with schematics so bear with me. So assume this is an old school tube amplifier for a guitar. And the 500hertz frequency is coming off the plate into the filter section. In this case are we simply attenuating the...
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    Capacitors in parallel effects on frequency

    I don't follow. How could the 159M ohm pass the frequency when the reactance is so high? Wouldn't only the 1uf capacitor pass the frequency given its small reactance?
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    Capacitors in parallel effects on frequency

    ok. I am getting for C2 = Xc = .16 Ohms C1 = XC = 159K Ohms Thus C1 would totally block the 1KHertz frequency. I find this interesting if I use ohms law and put 1v/.16 it is giving a current value of 6.25?????? This makes no sense. I can figure the current by putting C1/C1+C2 and then...
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    Capacitors in parallel effects on frequency

    I get how to calculate the cutoff frequency 1/ (2 pi f c) but that gives me the reactance in ohms for a given frequency. for instance if I put 100hz through a 1uf capacitor the resistance is 1.59ohms. this isn't very much so it will pass all audible frequencies. Why do you need a resistor to...
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    How do energy plants safely measure power

    Hi, How does a given power plants measure the power being generated? Is it simply a mathematical estimate based upon materials, windings, speed, magnet strength ect? Or do they have a gigantic multimeter? haha
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    Capacitors in parallel effects on frequency

    Let me clarify with a further example: I have a input signal coming off the plate of a tube amplifier and it travels through two capacitors joined together at a node before splitting off. One capacitor leads to a tone control/ pot and the thev capacitor leads to the volume control. Each...
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    Capacitors in parallel effects on frequency

    Hi all, I have a question on capacitors and signal chains. If I have a signal that goes through two capacitors in parallel of different values such as .01uf o and .005nf what would be the result? I understand that the lower .005nf capacitor would act as the path of least resistance to the...
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