Where does degeneration take place in a self – alpha cutoff frequency?(a) Across RB(b) Across RE(c) No degeneration occurs(d) Across RCI got this question in final exam.I would like to ask this question from The Alpha Cutoff Frequency topic in division High Frequency Transistor of Electronic Devices & Circuits

Where does degeneration take place in a self – alpha cutoff frequenc

1.	Where does degeneration take place in a self – alpha cutoff frequency?(a) Across RB(b) Across RE(c) No degeneration occurs(d) Across RCI got this question in final exam.I would like to ask this question from The Alpha Cutoff Frequency topic in division High Frequency Transistor of Electronic Devices & Circuits
Answer» CORRECT answer is (b) Across RE Explanation: Degeneration or negative feedback occurs across RE which in turn stabilizes the fluctuations of current IE due to TEMPERATURE changes and variations in VBE and α. In a stable alpha cutoff frequency, the variations in the VALUE of VBE and α do not affect the stability of the system.

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