Quote:
Originally Posted by SentraSE-R
It's all there in Mort's post #7. The power consumed (wattage) remains the same, but the amperage through the fan motor drops to half if the resistance in the circuit doubles by your adding resistors.
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No it doesn't. Look again. The motor alone uses 100 watts. The motor with 12 ohm resistor uses a total of 14 watts, 12 through the restor and 2 through the motor. It isn't the most efficient way to slow things down, but it does reduce the total power substantially.
-mort