The study of Ohm's law

I have included my considerations on Ohm's law on another site. Here is just an experimental kit to perform the exercise.
Also take into account that the DDMs used here have the accuracy of about 1% (DMM = Digital Multimeter). Please note that the accuracy of the DMM refers to the reading value, not to the maximum range of the used scale.

Adjusting the output voltage of the power supply

             Config: Set up configuration 1    2