Re: TI-H: 92 battery pack expander


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Re: TI-H: 92 battery pack expander




>Careful with your units there...  If you're talking about total energy
>expended,

I wasn't, I said power.  hence the direct conversion between
calories/second and watts, which are both power. Thats why
I wrote "200 dietary calories per hour" and not just 200 dCal.

>>Power can be released in the form of heat when an electrical
>>current flows through a resistance, according to the formula
>>P = VI^2 (Unless I misremember), where P is Watts, V is volts,
>>and I is Amps.
>
>P = V*I
>P = (I^2)*R
>P = (V^2)/R

I caught that incorrect formula right after I hit send, oops :)

>Most of the power is not released as heat.  Power is consumed because
>it takes energy to move electrons at a specified rate through a
>specified resistance.  Heat is simply an unwanted byproduct and
>consumes a comparatively small amount of energy in most systems.

Unless you are trying to build a heater :)

DK

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