Electrical schoolwork...
Kurt Deschler
desch at alum.wpi.edu
Tue Feb 10 02:40:01 EST 2004
Most of the panel mount LEDS use 1/4W resistors and seem to hold up fine.
-Kurt
> When selecting the resistor, be sure that its rated power is high enough
> given the voltage and current. The formula is:
>
> P = V * I
>
> Or 10V * 0.02A = 0.2W. You should use a resistor at least double (if
> not higher) that wattage to ensure that it won't burn up. In this case,
> a 0.5 resistor is marginally ok, but I would feel better with a 1W
> resistor.
>
> -Ti
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