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#1
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There is no cancellation because the postive and negative peaks do not
occur at the same time. Paul Burridge wrote in message . .. On Sat, 13 Nov 2004 11:42:11 +0000, Scott wrote: Huh? It's only 5:30AM here and I just got up but, the ONLY time you aren't consuming power is at the zero crossing of the voltage and current sine waves (assuming a purely resistive load where I and E are in phase). Since you are paying for power, which is P=I X E, during the negative half cycle, you have, for example, -168 Volts X -1 Amp = +168 Watts...try it on a calculator...negative times a negative is positive. Thanks, Scott. So you're basically agreeing with me. I owe the power co. for the positive cycles they send me; they owe *me* for the negative ones. Since they are equal and opposite, they cancel each other out. Overall, then, zero billing justified. We are being conned!!! |
#2
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![]() Huh? It's only 5:30AM here and I just got up but, the ONLY time you aren't consuming power is at the zero crossing of the voltage and current sine waves (assuming a purely resistive load where I and E are in phase). Since you are paying for power, which is P=I X E, during the negative half cycle, you have, for example, -168 Volts X -1 Amp = +168 Watts...try it on a calculator...negative times a negative is positive. P=I^2R, so which direction the current is flowing is irrelevant, as the squaring removes any negatives, and R is always positive. Would be interesting if you could get a true -R though! (not like a tunnel diode, which just has a small region where increasing V decreases I, but it's still positive) |
#3
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On Fri, 19 Nov 2004 08:26:54 -0500, "Dave VanHorn"
wrote: Huh? It's only 5:30AM here and I just got up but, the ONLY time you aren't consuming power is at the zero crossing of the voltage and current sine waves (assuming a purely resistive load where I and E are in phase). Since you are paying for power, which is P=I X E, during the negative half cycle, you have, for example, -168 Volts X -1 Amp = +168 Watts...try it on a calculator...negative times a negative is positive. P=I^2R, so which direction the current is flowing is irrelevant, as the squaring removes any negatives, and R is always positive. Would be interesting if you could get a true -R though! (not like a tunnel diode, which just has a small region where increasing V decreases I, but it's still positive) --- Overunity?! -- John Fields |
#4
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![]() Would be interesting if you could get a true -R though! I spent years perfecting a bar magnet with only a North pole. (Monopolar) I set it down on a table for a moment and it promptly took off for Antarctica. I haven't seen it since. I've been making them with only South poles for the last year, but have them all tied down. I'm going to release them on December 24 and give Santa a big surprise. |
#5
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On Fri, 19 Nov 2004 08:26:54 -0500, Dave VanHorn wrote:
Huh? It's only 5:30AM here and I just got up but, the ONLY time you aren't consuming power is at the zero crossing of the voltage and current sine waves (assuming a purely resistive load where I and E are in phase). Since you are paying for power, which is P=I X E, during the negative half cycle, you have, for example, -168 Volts X -1 Amp = +168 Watts...try it on a calculator...negative times a negative is positive. P=I^2R, so which direction the current is flowing is irrelevant, as the squaring removes any negatives, and R is always positive. Would be interesting if you could get a true -R though! (not like a tunnel diode, which just has a small region where increasing V decreases I, but it's still positive) Instead of wires, use glass tubes full of plasma. ;-) Cheers! Rich |
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