Amplifier Frequency Response - Practice Questions

Question 1

An amplifier has an output voltage of 7.6 V p-p at the midpoint of the frequency range. What is the output at fc?

Accepted Answer

Question 2

A ten-times change in frequency is called a(n)

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Question 3

Halving the power corresponds to a ________ dB ________.

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Question 4

An RC network has a roll-off of 20 dB per decade. What is the total attenuation between the output voltage in the midrange of the passband as compared to the output voltage at a frequency of 10 times fc?

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Question 5

For low-frequency response, all RC circuits in an amplifier may not have the same critical frequency. Which RC response will determine the critical frequency of the amplifier?

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Question 6

________ frequencies are values of frequency at which the RC circuits reduce the voltage gain to 70.7% of its midrange value.

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Question 7

A roll-off of 20 dB per decade is equivalent to a roll-off of ________ per octave.

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Question 8

A certain amplifier has a bandwidth of 22.5 kHz with a lower cutoff frequency of 600 Hz. What is the value of fcu?

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Question 9

Internal transistor junction capacitances affect the high-frequency response of amplifiers by

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Question 10

Each RC circuit causes the gain to drop at a rate of ________ dB/decade.

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