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Join Date: Jul 2003
Location: Fort Collins, Colorado
Posts: 110
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MrPants -
No. To decrease resistance, you would make the hose larger. Making the hose diameter smaller would increase the resistance. Fluid in a hose and electricity are very similar, and even the pics I just posted from my old physics text use the water/electricity analogy to help explain. There are differences; fluid flow is actually a lot more complicated than electricity. The principle is close enough for a good explaination, though. Current is measured in Amperes (or amps). It is a measure of how much charge (not how many electrons) passes a point per unit time. It is analogous to flow rate for fluid in a hose. One amp = 1 coulomb of charge per second (sorta like 1 gallon per minute). The charge on one electron is about 0.0000000000000000001602217 Coulombs. |
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01-11-2004, 08:49 AM
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vott does ziss do?
Join Date: May 2003
Location: Seattle
Posts: 6,676
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csu. click on my e-mail icon and send away
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01-11-2004, 12:05 PM
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Location: Fort Collins, Colorado
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Ronin -
How do I attach a file in email? I'm not seeing an attachment button or anything. -Tom |
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01-11-2004, 12:32 PM
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vott does ziss do?
Join Date: May 2003
Location: Seattle
Posts: 6,676
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don't know what you're using. just cut-and-paste my e-mail addy into your preferred e-mail app. that'll work just fine
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01-11-2004, 12:35 PM
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vott does ziss do?
Join Date: May 2003
Location: Seattle
Posts: 6,676
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Quote:
 (edit) btw: CSU. are you talking about latent movement of "stationary" electrons? if not, then that's still not correct. they really do whiz by at near the speed of light
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Last edited by ronin; 01-11-2004 at 12:41 PM.. |
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01-11-2004, 12:38 PM
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Ok, I though you meant email using the board's means. I'll get them out to you.
Electrons are particles, and have mass. In order to move at the speed of light, an electron would have to have a great enough force to propel it, and resistance would have to be zero. There's simply too much other stuff in the way (other molecules in the wire, for example) for that to happen. Consider this: billions of dollars have been spent building particle accelerators to try to get an elementary particle (i.e., an electron) moving at the speed of light. We haven't been able to do that yet. The electric field will move through the wire at about the speed of light, but the individual free electrons move very slowly. The paragraph in the middle of the third page explains this pretty well. -Tom |
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01-11-2004, 03:28 PM
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Location: Fort Collins, Colorado
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Ronin-
Keeps failing when I try to send it to your hotmail address. Got a better address? |
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01-11-2004, 04:04 PM
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vott does ziss do?
Join Date: May 2003
Location: Seattle
Posts: 6,676
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true, true, true, true, true! let me slam my head into my desk for ya. the individul electrons themselves do not move much. but the electrical charge does, by way of a domino effect from electron to electron, at near the speed of light. next time I'll be a bit more explicit with my explanations
 what's the file size?
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01-11-2004, 04:15 PM
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Exactly! Electrons and charges are not the same thing.
File size is 663 KB. |
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01-11-2004, 04:18 PM
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vott does ziss do?
Join Date: May 2003
Location: Seattle
Posts: 6,676
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check your peee-emmm
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01-11-2004, 04:49 PM
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