I was promised a current gain of roughly a thousand. We had an experiment involving this circuit to measure the input base current and output emitter current:
(That base resistor is a 50k ohm potentiometer.)
However we just kept getting a beta of 1.84. Very disappointing, no matter how we adjusted the potentiometer.
I tried measuring the beta current directly (instead of measuring the resistor base voltage and figuring it out from there) and found the beta to be 33.23. Unimpressive.
I understand the BJT has its own internal resistance that might have affected my readings. However, if that's the case, how can I be sure that it can deliver what it advertises, if it can't boost emitter current to a thousand times the base current?
I also would want to mention that it had a base emitter voltage of roughly 0.5V instead of something close to 1.4V. Is it possible that we used a defective BJT?