I apologize if this is a dumb question but here is my dilemma. I've been attempting to use two 10ohm 1W resistors set up in parallel to provide a constant 5 ohm load for a TEG(outputs anywhere from 13v). I have my system setup so that I measure voltage across the resistor i.e.  before + after the resistor. I was hoping that with these two values (voltage and resistance) I would be able to calculate how much power the TEG is generating. I did a short test but the numbers didn't quite add up. I'm now also worried that the resistors are providing enough of a load and that I'm just shorting the TEG. I don't know if I should change the resistance or if I'm taking a totally wrong approach to this. Any help or advice would be extremely appreciated. Thank You.

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