Bandwidth of amplifier is __________(a) Difference between upper cut-off frequency and lower cut-off frequency(b) Sum of upper cut-off frequency and lower cut-off frequency(c) Average of upper cut-off frequency and lower cut-off frequency(d) Independent to cut off frequencyThis question was posed to me at a job interview.Origin of the question is General Frequency Consideration in division Transistor Biasing and Low Frequencies of Analog Circuits

Bandwidth of amplifier is __________(a) Difference between upper cut-o

1.	Bandwidth of amplifier is __________(a) Difference between upper cut-off frequency and lower cut-off frequency(b) Sum of upper cut-off frequency and lower cut-off frequency(c) Average of upper cut-off frequency and lower cut-off frequency(d) Independent to cut off frequencyThis question was posed to me at a job interview.Origin of the question is General Frequency Consideration in division Transistor Biasing and Low Frequencies of Analog Circuits
Answer» Right option is (a) Difference between upper cut-off FREQUENCY and LOWER cut-off frequency Explanation: 3DB bandwidth of an amplifier is the difference between upper cut-off frequency and lower cut-off frequency. The unity gain bandwidth is the difference between frequencies where gain is 1.

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