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Originally Posted by ErichKeane
BTW, according to my ap physics TB: when Resistance is raised, Current goes down, not voltage, therefore, there must be some kind of source for 3 volts going somewhere.
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Right, but resistors also have a voltage drop across them equal to their resistance times the current running through them..
So if you have a simple circuit with a 9V battery and 2 resistors of equal resistance (say 100K) then the voltage drop across each resistor is 4.5V. You can see this by the equation V=IR. The total resistance is 200K, and with a 9V battery since I=V/R, I = 45 uA. Each resistor has a voltage drop V=IR = (45 uA) * (100KOhms) = 4.5V.
Therefore if your frame was somehow inbetween those two 100K resistors, your frame voltage would not be the same as the power supply voltage.
But I definately think the problem is static electricity. It's most likely from the carpet or the HDPE. Try the 100K resistor to the 12V and ground test. It should solve your problem.