Alt-BEAM Archive
Message #05083
To: beam@sgiblab.sgi.com
From: Bob Shannon bshannon@tiac.net
Date: Wed, 07 Jul 1999 19:15:20 -0400
Subject: [alt-beam] Re: Resistors
1/16 watt resistors work fine in a photopoper.
Resistors are rated for constant heat dissapation. The resistors in the popper
engine are not under this sort of load at all. People use them all the time.
Senior wrote:
> Well, I can help you figure it out yourself ;)
> Watts = Current * Volts
>
> So assuming your motors draw at most 50 milliamps, and your solar cell
> puts out 3.5 volts at most, the wattage is:
> .050 * 3.5 = .175 = 7/40
> 1/16 is the same as 2/32, which is smaller than 7/40, so, no, 1/16 watt
> resistors won't work :)
>
> Kyle
>
> RoboDR@aol.com wrote:
> >
> > What is the smallest watt resistor that can be used on the photopopper
> > circuit? For example could I use a 1/16 watt resistor? Or would it > burn out?
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