I am new to electronics and I was playing around with MOSFETs. I have an IRFZ44N MOSFET from International Rectifier that is showing unusual behavior.
The gate of the MOSFET wasn't connected to anything, but current was flowing from drain to source. The amount of current flowing was about 0.7 mA which is enough to power a LED.
Suspecting that I somehow killed the MOSFET, I bought another one and the same thing happened. The new one also allowed 1 mA of current from drain to source without any gate voltage. The voltage between gate and source is 5 V in both cases.
I have been trying to do this thing for a whole day and I am stuck. Are both of my MOSFETs damaged, or am I missing something crucial?