Turn Lamp Resistor? (Scientific Type Peoples with Equations)

[Larry C Leung]

True, but most times we can't easily measure current, so the voltage
version

V^2/R = P is usually more convienient.

LL - NY

On Mon, 27 Aug 2001 12:46:58 -0700 (PDT) Ti Kan <ti at amb.org> writes:
>Nope.  P = I*I * R (I squared times R).
>
>-Ti
>-- 
>    ///  Ti Kan                Vorsprung durch Technik
>   ///   AMB Research Laboratories, Sunnyvale, CA. USA
>  ///    ti at amb.org
> //////  http://www.amb.org/ti/
>///
>
>Alan Kramer writes:
>> Oops, you mistyped.  It's P = I*I / R
>> 
>> Larry Leung writes:
>> >V = IR (V is volts, I is amps, R is resistance in ohms)
>> >
>> >P = IV (P is power in Watts, all else the same)
>> >
>> >combine the equations
>> >
>> >P = V*V / R   (V squared over R)
>
>