Gain bandwidth frequency is GBP= 3000 Mhz. The cut-off frequency is f=10Mhz. What is the CE short circuit current gain at the β cutoff frequency?
(a) 212
(b) 220
(c) 300
(d) 200
This question was posed to me in an international level competition.
The question is from High Frequency Response in chapter Transistor Frequency Response of Analog Circuits