
Frequency Response
Quiz
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Other
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University
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Practice Problem
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Easy
Arya Putra
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
1. What causes the gain of a BJT amplifier to drop at low frequencies?
Load resistance
Inter-electrode capacitance
Coupling and bypass capacitors
Collector current
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the definition of a cutoff frequency in an amplifier's frequency response?
Frequency where input voltage is minimum
Frequency at which power is maximum
Frequency where gain has dropped by 3 dB
Frequency where current is zero
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the bandwidth of an amplifier represent?
Frequency range where gain is zero
Range between the power supply limits
Range between the lower and upper cutoff frequencies
The total harmonic distortion range
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does a Bode plot display?
Gain vs. input voltage
Frequency response of an amplifier
Voltage vs. current
Phase angle vs. power
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What type of frequency change does a –20 dB/decade roll-off indicate?
2-fold frequency decrease
5-fold frequency increase
10-fold frequency change
1% frequency shift
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which component has the most influence on the lower cutoff frequency in a BJT amplifier?
The one with the highest cutoff frequency
The one with the lowest reactance
The one with the smallest capacitance
The one with the lowest gain
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the typical unit used for gain in a Bode plot?
Volts
Amperes
Hertz
Decibels (dB)
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