Ohm's Law states the V=I*R (v-voltage, r-resistance, i-amps) or R=V/I. All electric heaters work on this principal of using a high resistace coil or wire to create heat, GP's being no exception. A 12 volt system would need a hell of alot of power flowing through to heat up those plugs at 1 ohm of resistance. I could be wrong, but I would tend to think that our GP's have extremely high resistance to heat up to over 1000 degrees that they do. Someone want to chime in and correct me if I'm wrong?
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Adam Lumsden
(83) 300D
Vice-President of the MBCA International Stars Section
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