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#11
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Holy Moly -- Residual Electricity????
"Gordon" wrote in message ... : "Androcles" wrote in message : .uk... : : "Gordon" wrote in message : ... : : wrote in message : : news : : : : Capacitors. : : : : : : : : capacitors usually discharge when the current is switched off - their : main : : job is to smooth current, not to store volts.... : : That shows how much you know -- which is zilch. : : : : : Well rooty toot to you. That shows just how childish you are. |
#12
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Holy Moly -- Residual Electricity????
"Androcles" wrote in message
o.uk... "Gordon" wrote in message ... : "Androcles" wrote in message : .uk... : : "Gordon" wrote in message : ... : : wrote in message : : news : : : : Capacitors. : : : : : : : : capacitors usually discharge when the current is switched off - their : main : : job is to smooth current, not to store volts.... : : That shows how much you know -- which is zilch. : : : : : Well rooty toot to you. That shows just how childish you are. Sod you you arrogant ignorant moron. Capacitors ARE used to smooth current so just crawl back under your slimy rock... |
#13
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Holy Moly -- Residual Electricity????
"Gordon" wrote in message ... : "Androcles" wrote in message : o.uk... : : "Gordon" wrote in message : ... : : "Androcles" wrote in message : : .uk... : : : : "Gordon" wrote in message : : ... : : : wrote in message : : : news : : : : : : Capacitors. : : : : : : : : : : : : capacitors usually discharge when the current is switched off - : their : : main : : : job is to smooth current, not to store volts.... : : : : That shows how much you know -- which is zilch. : : : : : : : : : : Well rooty toot to you. : : That shows just how childish you are. : : : : Sod you you arrogant ignorant moron. : Capacitors ARE used to smooth current so just crawl back under your slimy : rock... That shows just how stupid you really are, you don't even know the difference between voltage and current. HAHAHA! |
#14
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Holy Moly -- Residual Electricity????
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#15
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Holy Moly -- Residual Electricity????
On Nov 5, 12:27 pm, Lem wrote:
Gordon wrote: wrote in message news Capacitors. capacitors usually discharge when the current is switched off - their main job is to smooth current, not to store volts.... True, but they don't discharge instantaneously. Ever hear about the "time constant" of an R-C circuit? T = R × C whe T = time constant in seconds R = resistance in ohms C = capacitance in farads The time constant is the time taken for the charging (or discharging) current (I) to fall to 1/e of its initial value (Io). After each time constant the current falls by 1/e (about 1/3). After 5 time constants (5RC) the current has fallen to less than 1% of its initial value and we can reasonably say that the capacitor is fully (dis)charged, but in fact the capacitor takes for ever to (dis)charge fully! -- Lem -- MS-MVP - Networking To the moon and back with 4KB of RAM and 72KB of ROM.http://en.wikipedia.org/wiki/Apollo_.../compessay.htm Yes,To the moon and back with 4KB of RAM and 72KB of ROM. So why can't some one harness nuclear fusion for our energy needs? |
#16
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Holy Moly -- Residual Electricity????
Prisoner at War wrote:
Is there some such concept as "residual electricity"??? There was a problem with a computer at work...it's a new Dell running WinXP Pro...everything's fine, I go to lunch and come back to a blank screen that won't wake up from power-save/sleep mode!! I do the obvious and check connections, making sure they're secure and whatnot. I turn off the computer and turn it back on a few times, to no effect! Tech Support suspects some kind of a "power management" issue -- whatever that is -- and suggests that I leave the system off for a few minutes, literally, to let things "clear"...whatever that means. Sure enough, however: it works! So now I'm here asking, because Tech hasn't the time to puzzle over it with me, WHAT HAPPENED??? And how come shutting off power for a few seconds isn't comparable to leaving power off for a few minutes???????????? You're going to get a lot of theory here, but the real answer is: The power supply's broke. |
#17
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Holy Moly -- Residual Electricity????
"Gerald Newton" wrote in message oups.com... On Nov 5, 12:27 pm, Lem wrote: Gordon wrote: wrote in message news Capacitors. capacitors usually discharge when the current is switched off - their main job is to smooth current, not to store volts.... True, but they don't discharge instantaneously. Ever hear about the "time constant" of an R-C circuit? T = R × C whe T = time constant in seconds R = resistance in ohms C = capacitance in farads The time constant is the time taken for the charging (or discharging) current (I) to fall to 1/e of its initial value (Io). After each time constant the current falls by 1/e (about 1/3). After 5 time constants (5RC) the current has fallen to less than 1% of its initial value and we can reasonably say that the capacitor is fully (dis)charged, but in fact the capacitor takes for ever to (dis)charge fully! -- Lem -- MS-MVP - Networking To the moon and back with 4KB of RAM and 72KB of ROM.http://en.wikipedia.org/wiki/Apollo_.../compessay.htm Yes,To the moon and back with 4KB of RAM and 72KB of ROM. So why can't some one harness nuclear fusion for our energy needs? 1) Don't need to, your energy needs are really your energy wants. Mankind can survive without the inefficient use of energy and has done for millions of years, as do all other species on this planet. There is a huge difference between need and want. 2) The equations are wrong, the fools are fiddling with Einstein's relativity and it doesn't work. So why can't *you* harness nuclear fusion for *my* energy wants? |
#18
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Holy Moly -- Residual Electricity????
No it's not!
"HeyBub" wrote in message ... Prisoner at War wrote: Is there some such concept as "residual electricity"??? There was a problem with a computer at work...it's a new Dell running WinXP Pro...everything's fine, I go to lunch and come back to a blank screen that won't wake up from power-save/sleep mode!! I do the obvious and check connections, making sure they're secure and whatnot. I turn off the computer and turn it back on a few times, to no effect! Tech Support suspects some kind of a "power management" issue -- whatever that is -- and suggests that I leave the system off for a few minutes, literally, to let things "clear"...whatever that means. Sure enough, however: it works! So now I'm here asking, because Tech hasn't the time to puzzle over it with me, WHAT HAPPENED??? And how come shutting off power for a few seconds isn't comparable to leaving power off for a few minutes???????????? You're going to get a lot of theory here, but the real answer is: The power supply's broke. |
#19
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Holy Moly -- Residual Electricity????
Gordon wrote:
wrote in message news Capacitors. capacitors usually discharge when the current is switched off - their main job is to smooth current, not to store volts.... But it's not instantaneous, which can be seen easily by turning off your computer, unplugging it from the wall/USP and pressing the computer's ON switch. What you're doing is bleeding off the charge left behind by the Instant On feature (keeps the mobo hot). This bleeds off pretty quickly on its own. IIRC I've seen big warning stickers on TVs/monitors warning of 1,000 of volts if you go poking inside. http://icrontic.com/forum/showthread.php?p=241556 |
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