BJT and FET Frequency Response - General Questions Online Exam Quiz
BJT and FET Frequency Response - General Questions GK Quiz. Question and Answers related to BJT and FET Frequency Response - General Questions. MCQ (Multiple Choice Questions with answers about BJT and FET Frequency Response - General Questions
A change in frequency by a factor of ________ is equivalent to 1 octave.
Options
A : 2
B : 10
C : 5
D : 20
What is the ratio of the capacitive reactance X CS to the input resistance R I of the input RC circuit of a single-stage BJT amplifier at the low-frequency cutoff?
Options
A : 0.25
B : 0.50
C : 0.75
D : 1.0
For which of the following frequency region(s) can the coupling and bypass capacitors no longer be replaced by the short-circuit approximation?
Options
A : Low-frequency
B : Mid-frequency
C : High-frequency
D : All of the above
Determine the lower cutoff frequency of this network.
Options
A : 15.8 Hz
B : 46.13 Hz
C : 238.73 Hz
D : 1575.8 Hz
The smaller capacitive elements of the design will determine the ________ cutoff frequencies.
Options
A : low
B : mid
C : high
D : -
What is the range of the capacitor C ds ?
Options
A : 0.01 to 0.1 pF
B : 0.1 to 1 pF
C : 0.1 to 1 nF
D : 0.1 to 1 F
An amplifier rated at 30-W output is connected to a 5- speaker. Calculate the input voltage for the rated output if the amplifier voltage gain is 20 dB.
Options
A : 1.225 mV
B : 12.25 mV
C : 122.5 mV
D : 1.225 V
An amplifier rated at 30-W output is connected to a 5- speaker. Calculate the input power required for full power output if the power gain is 20 dB.
Options
A : 3 mW
B : 30 mW
C : 300 mW
D : 3 W
The larger capacitive elements of the design will determine the ________ cutoff frequency.
Options
A : low
B : mid
C : high
D : -
Which of the following elements is (are) important in determining the gain of the system in the high-frequency region?
Options
A : Interelectrode capacitances
B : Wiring capacitances
C : Miller effect capacitance
D : All of the above
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