I just started using the ADALM2000, this is the first exercise that I am trying to do from the "Electronic i" section, I have linked the activity below
In this activity section I am trying to study the I vs V characteristics of the 1N914 diode. The lab directs to use the differential input of the channel 2 (2+, 2-) to measure the voltage across the resistor which divided by the resistor value gives current through the resistor and diode, however I end up measuring only the input voltage and when I connect the "2-" terminal of the channel 2's probe to the lower leg of the resistor it basically seems like shorts the diode (as the other probe is measuring the voltage across the diode) and I end up with only input waveform on the scopy. Am I missing something here? is there a setting that needs to be enabled on channel 2 to turn it into a differential probe?
My understanding is that the "2-" terminal and the "1-" terminal are internally grounded and so that is why when the "2-" terminal is connected to the lower leg of the resistor it shorts the diode out.