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What is I2R

Last response: in Components
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February 24, 2003 8:19:27 AM

I squre R.
It has something to do with hardware buses but I don't know excactly... so if someone could post some links I would be thankful.
I have to write a paer about it to school.

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February 24, 2003 5:04:07 PM

Well I think it poinst towards the physic formula for joule-heat: Q=I^2R
Where:
Q is the amount of heat produced in W
I is the amperage
R is the resistance.

My dual-PSU PC is so powerfull that the neighbourhood dims when I turn it on :eek: 
February 25, 2003 3:27:45 PM

That's pretty much it. Its the formula for electrical power, but most of the time when someone says it in that phrase " I-squared-R", they are referring to power losses in the circuit due to the resistance of the conductor. It escapes in the form of heat.

The only way France is going in is if we tell them we've discovered truffles in Iraq. -Dennis Miller
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February 25, 2003 8:09:45 PM

Wow, and to think I've used volts x amps all these years to get watts consumed, and simply assumed that if no "work" gets done, it's all lost to heat!

<font color=blue>Watts mean squat if you don't have quality!</font color=blue>
February 27, 2003 3:16:52 PM

Well you're correct: P=UI with U=IR. So P=IIR=I^2R

My dual-PSU PC is so powerfull that the neighbourhood dims when I turn it on :eek: 
!