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#16196 11/07/02 07:25 AM
Joined: Oct 2002
Posts: 49
J
Member
Is there any quick formula to convert joules into watts? This would solve an argument at work.


The lesson is in the struggle, not the victory.
#16197 11/07/02 08:30 AM
Joined: Oct 2000
Posts: 2,749
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Joe Tedesco, NEC Consultant
#16198 11/07/02 08:34 AM
Joined: Aug 2002
Posts: 402
J
Member
KWH = 3,600,000 joules

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

#16199 11/07/02 08:56 AM
Joined: Oct 2002
Posts: 49
J
Member
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.


The lesson is in the struggle, not the victory.
#16200 11/07/02 08:51 PM
Joined: Apr 2002
Posts: 2,527
B
Moderator
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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