pito:
@Nick - you have to connect something to the drain, as the input capacitance consists from Miller capacitance as well, which depends on Vds.
OK then, I connected up an LED, and resistor in series, to a 5V power supply. Now:
440 mA.
BTW, the whole point is, do you need to use a gate resistor with an Adruino, not your function generator.
Yes, hmmm. But is your argument then that the Arduino must have a series resistor on the output pin?
Just out of curiosity, why don't you measure the current?