Transistors and Applications - General Questions Online Exam Quiz
Transistors and Applications - General Questions GK Quiz. Question and Answers related to Transistors and Applications - General Questions. MCQ (Multiple Choice Questions with answers about Transistors and Applications - General Questions
The primary function of the bias circuit is to
Options
A : hold the circuit stable at V CC
B : hold the circuit stable at v in
C : ensure proper gain is achieved
D : hold the circuit stable at the designed Q-point
A JFET
Options
A : is a current-controlled device
B : has a low input resistance
C : is a voltage-controlled device
D : is always forward-biased
The capacitor that produces an ac ground is called a(n)
Options
A : coupling capacitor
B : dc open
C : bypass capacitor
D : ac open
In a class B push-pull amplifier, the transistors are biased slightly above cutoff to avoid
Options
A : crossover distortion
B : unusually high efficiency
C : negative feedback
D : a low input impedance
The depletion-mode MOSFET
Options
A : can operate with only positive gate voltages
B : can operate with only negative gate voltages
C : cannot operate in the ohmic region
D : can operate with positive as well as negative gate voltages
Three different points are shown on a dc load line. The upper point represents the
Options
A : minimum current gain
B : quiescent point
C : saturation point
D : cutoff point
Which of the following conditions are needed to properly bias an npn transistor amplifier?
Options
A : Forward bias the base/emitter junction and reverse bias the base/collector junction.
B : Forward bias the collector/base junction and reverse bias the emitter/base junction.
C : Apply a positive voltage on the n -type material and a negative voltage on the p -type material.
D : Apply a large voltage on the base.
Often a common-collector will be the last stage before the load; the main function of this stage is to
Options
A : provide voltage gain
B : buffer the voltage amplifiers from the low-resistance load
C : provide phase inversion
D : provide a high-frequency path to improve the frequency response
In order for feedback oscillators to have any practical value, the gain has to be
Options
A : < 1
B : self-adjusting
C : stabilized
D : nonlinear
To get a negative gate-source voltage in a self-biased JFET circuit, you must use a
Options
A : voltage divider
B : source resistor
C : ground
D : negative gate supply voltage
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