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Old 01-22-2014, 10:22 AM
Rob Pruijt Rob Pruijt is offline
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Join Date: Dec 1999
Location: Utrecht, the Netherlands
Posts: 416
Quote:
Originally Posted by 1991300SEL View Post
How is it than I'm measuring with 9 volts vs. 12? Could someone throw up the math? Not doubting anything that's been said, just looking for clarification.

Thanks.
It is rather simple.
If you measure 3 volt over the resistor it means that the voltage drops 3 volt over the resistor, leaving 9 volt for the rest.
The same as putting two 6volt lamps in series on a 12 volt battery.

Rob
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