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#16196 - 11/07/02 03:25 AM Quick Question
JuddsAirco Offline
Member

Registered: 10/12/02
Posts: 50
Loc: KY, USA
Is there any quick formula to convert joules into watts? This would solve an argument at work.
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#16197 - 11/07/02 04:30 AM Re: Quick Question
Joe Tedesco Offline
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#16198 - 11/07/02 04:34 AM Re: Quick Question
jdevlin Offline
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Registered: 08/07/02
Posts: 402
Loc: welland ontario canada
KWH = 3,600,000 joules

from this site http://www.essex1.com/people/speer/units.html

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#16199 - 11/07/02 04:56 AM Re: Quick Question
JuddsAirco Offline
Member

Registered: 10/12/02
Posts: 50
Loc: KY, USA
Thanks guys, the argument was trying to decide how much in watts 360 joules of defibrillator power equaled out to in watts. My friend (also an electrician) whom I am partners with at EMS, and I sure got some weird looks from the rest of the crew while arguing our points. I don't think the rest of them even had a clue.
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#16200 - 11/07/02 04:51 PM Re: Quick Question
Bjarney Offline
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Registered: 04/10/02
Posts: 2561
Loc: West-Southern Inner-Northeast ...
There is no direct equivalent—watts are units of power and joules are units of energy.

1 joule = 1 watt∙second,

so 360 joules would be 360 watts flowing for one second, or 3600 watts flowing for 0.1 second, et cetera.

Applying Ohm's Law to human organs to determine voltage for a given current through human tissue gets complicated quickly.

A capacitor can store and release joules {energy} but watts are a unit of power, so with watts you have to define a time interval to derive/equate energy.

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