I can`t understand this currents. I was expecting 3mA ((5-2)/1000) on the 1st case and 3A (1000(gain)*3mA) on the 2nd and 3rd.
An odd justification. Do you also put an electric heater in the bath just to test?
the only thing that in annoying me is the currents that does not match.
I am just testing the transistor.