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Propeller Head Plaza Technical and scientific discussion of amps, cables and other topics. |
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Propeller Head Plaza Technical and scientific discussion of amps, cables and other topics. |
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In Reply to: Re: Electrical misconceptions? posted by jneutron on August 24, 2005 at 08:23:34:
The examples you give on the other subthread made me read a little bit more "thouroughly" ... well I should have done that before.
Found this one too:
ATOMS HAVE EQUAL NUMBERS OF ELECTRONS AND PROTONS? Not in conductors!
then I understood his way of thinking: he gives a big general statement with capitals, so I visualize a metal sphere charged with 1 coulomb, it's ok. But if I read further, my eyes open wider and wider:
"If all atoms were truely neutral, then conductors could not exist." according to him, they don't exist... confusion and muddiness around the difference between atoms and ions
"Apply a voltage to a metal, and its electrons begin flowing. Salt water is full of positive and negative ions. Glowing gas (fluorescent lights, neon signs, sparks) is full of movable electrons and movable positive ions. These three are teh most common conductors, and they owe their conductivity to the presence of movable charged particles which occur naturally." so what? well the "apply a voltage" appeals me, but what has to do this paragraph with his main statement? seems not understand that the atoms don't lose their conduction band electrons in a wire, that is is a flow, defined in each point of the wire by a flux density, j, which integrate around the wire is the current.
This one too:
"Vacuum is NOTHING, so how can it act as a barrier to electric current?" so according to him, tubes, magnetrons and ion traps can't exist. Once more, if you understand his way of thinking, I bet he means that vacuum is an insulator.
But no, I won't comment further. Going to listen some musin before night time.
Should have read more thoroughly than I did!>Geeze, if you thought that, why not speak up...I can handle critique
Well, I had nothing to criticize in your posts in this thread ;-) Up to now, the only way I know to have less noisy resistors, apart from choosing the good material, is to have them work at low temp, but since ambient temps are in the 300, this exp-kt factor make thinks go smaller at a slow rate until the last degrees, and I can't afford liquid helium...
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- Re: Electrical misconceptions? - Jacques 16:50:46 08/24/05 (0)
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