Civil Engineering Mechanical Engineering Chemical Engineering Networking Database Questions Computer Science Basic Electronics Digital Electronics Electronic Devices Circuit Simulation Electrical Enigneering Engineering Mechanics Technical Drawing

Electronic Devices - Amplifier Frequency Response

Exercise

"Success has many fathers, while failure is an orphan."
- (Proverb)
1.

Doubling the voltage gain causes a ________ dB ________.

 A. 10, increase B. 6, increase C. 10, decrease D. 6, decrease

2.

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

 A. Critical B. Cutoff C. Corner D. all of the above

3.

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

 A. 3 dB B. 13 dB C. 12 dB D. 6 dB

4.

An amplifier has an Rin = 1.2 k. The coupling capacitor is 1 F. Determine the approximate lower cutoff frequency.

 A. 133 Hz B. 1.33 kHz C. 13.3 kHz D. 133 kHz

5.

Refer to this figure. The output voltage at fcl = 12 mV. What is the output voltage at the midpoint frequency?

 A. 12 mV B. 12 mV p-p C. 16.97 mV D. 8.48 mV