Hi all, quick question.
We did an experiment measuring voltage and current (and using these results to calculate resistance), increasing the voltage for each result but using the same resistor.
In my results the resistance increased very slightly with each increase of voltage, is this what 'should' have happened? Or should it have remained constant?
I don't know if the slight increase is down to the calculations and the fact that the voltmeter and ammeter could only read to 2 decimal places.