Watts are Joules/second so the time component is already specified.

Do you mean use Root Mean Square(RMS) to measure a variable something  
over time? I'm not sure I understand the second question.



On Aug 3, 2006, at 10:32 PM, Mohamed Ismail Bari wrote:

> Hello guys,
>
> I need a very basic clarification here.
>
> Lets say a resistor of 1Ohm has 1Amp DC current through it. So, the  
> power
> dissipated in the resistor is 1W. I want to know how this power can be
> releated to time. Should I say the dissipation as 1W/Sec or 1W/min or
> 1W/Hr?????.... (My guess is 1W/Sec) I am sure this is a 7th grade  
> math.
> Probably, I was not paying attention when I was in 7th grade..;-).
>
> On the similar lines.. How do we measure the power consumed by a
> fast varying load (For ex: Switching currents in a IC).. Area under  
> the
> current waveform? Any other methods?
>
> Thanks,
> Ismail
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