Q.1
What is the frequency of oscillation of wein bridge oscillator?
  • a) fo = 1/(2πRC)
  • b) fo = 2π/RC
  • c) fo = RC/2π
  • d) fo = 2πRC
Q.2
Sustained oscillation in wein bridge oscillator is possible when the value of ß is
  • a) 3
  • b) 1/3
  • c) 1
  • d) None of the mentioned
Q.3
Determine the value of fo, ß and Rf from the following circuit diagram.
Questionlinear-integrated-circuits-questions-answers3.jpg
  • a) fo = 80Hz, ß = 0.162 and Rf = 7kΩ
  • b) fo = 100Hz, ß = 1.62 and Rf = 7kΩ
  • c) fo = 60Hz, ß = 0.0162 and Rf = 7kΩ
  • d) fo = 120Hz, ß = 16.2 and Rf = 7kΩ
Q.4
What is the problem faced by the wein bridge oscillator?
  • a) Output sinewave get clipped
  • b) Output sinewave remain constant without growing
  • c) Output sinewave keep on decreasing and die out
  • d) All of the mentioned
Q.5
Find the type of oscillator shown in the diagram
Questionlinear-integrated-circuits-questions-answers5.jpg
  • a) Quadrature oscillator
  • b) Biphasic oscillator
  • c) RC phase shit oscillator
  • d) None of the mentioned
Q.6
Calculate the value of capacitance in wein bridge oscillator, such that fo =1755Hz and R=3.3kΩ.
  • a) 2.7µF
  • b) 0.91µF
  • c) 0.03µF
  • d) 0.05µF
Q.7
Quadrature oscillators have signals with
  • a) Different frequency
  • b) Same frequency
  • c) Opposite frequency
  • d) Parallel frequency
Q.8
Which of the following component is not used for audio frequency?
  • a) RC oscillator
  • b) Wein bridge oscillator
  • c) LC oscillator
  • d) None of the mentioned
Q.9
If the resistor and capacitor values are same in Quadrature oscillator. Find its frequency of oscillation for R=50kΩ and C=0.01µF.
Questionlinear-integrated-circuits-questions-answers9.jpg
  • a) 112Hz
  • b) 275Hz
  • c) 159Hz
  • d) 318Hz
Q.10
What is the possible method used in Quadrature oscillator to remove distortion from the output waveform?
  • a) Replace the resistor at the input of non-inverting type amplifier with a potentiometer
  • b) Replace the resistor at the output of non-inverting type amplifier with a potentiometer
  • c) Replace the resistor at the input of inverting type amplifier with a potentiometer
  • d) None of the mentioned
0 h : 0 m : 1 s