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#36285 - 04/03/04 04:56 AM Volts and amps?  
ComputerWizKid  Offline
Member
Joined: Sep 2003
Posts: 119
Connecticut, USA
I know volts/watts = Amps but how do I figure out the watts from and amp reading? A fan (12V DC Computer fan) says 0.25A how so I figure out watts? thanks


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#36286 - 04/03/04 05:00 AM Re: Volts and amps?  
pauluk  Offline
Member
Joined: Aug 2001
Posts: 7,520
Norfolk, England
It's actually Watts/Volts=Amps.

You can rearrange the formula to Watts = Volts x Amps, so for your fan 12V x 0.25A = 3W.

(That's for DC; it can get more complex for AC.)


#36287 - 04/03/04 08:47 AM Re: Volts and amps?  
Trumpy  Offline


Member
Joined: Jul 2002
Posts: 8,211
SI,New Zealand
Wizkid, if you are the specialist that your name suggests, this is Basic Ohms Law + Transposition of an Equation, easy!.
I can work these things out in my head!. [Linked Image]


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#36288 - 04/03/04 05:28 PM Re: Volts and amps?  
Bjarney  Offline
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Joined: Apr 2002
Posts: 2,527
West-Southern Inner-Northeast ...
Er, there's this.

    [Linked Image]




[This message has been edited by Bjarney (edited 04-03-2004).]



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