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Hello I am working on a lab that pertains to the IV characteristics of n type MOSFETS.The lab calls for recording the value of the drain current while increasing VDS/VGS from 0 to 6 volts in steps of 1 volt.
I constructed this circuit
As I increase the voltage for VDS/VGS I am experience I weird issue with the Drain Current readings. It issue is that it is not very stable at all. The current is constantly changing. What I mean by constantly changing is that when I up the voltage from 5 to 6 volts, the current obviously jumps but then quickly plummets close to 40 mA in a matter of seconds, without anything else changing.
I took a video of it.
https://youtu.be/-LMfpRZQWVAis there anything I can do with the circuit to fix this?