In an LC transistor oscillator, the active device is___________?
A. LC tank circuit
B. Biasing circuit
C. Transistor
D. None of the above
Month: December 2018
An oscillator employs___________feedback?
An oscillator employs___________feedback?
A. Positive
B. Negative
C. Neither positive nor negative
D. Data insufficient
In a phase shift oscillator, we use____________RC sections?
In a phase shift oscillator, we use____________RC sections?
A. Two
B. Three
C. Four
D. None of the above
The application where one would most likely find a crystal oscillator is____________?
The application where one would most likely find a crystal oscillator is____________?
A. Radio receiver
B. Radio transmitter
C. AF sweep generator
D. None of the above
In a certain oscillator Av = 50. The attention of the feedback circuit must be___________?
In a certain oscillator Av = 50. The attention of the feedback circuit must be___________?
A. 1
B. 01
C. 10
D. 02
____________is a fixed frequency oscillator?
____________is a fixed frequency oscillator?
A. Phase-shift oscillator
B. Hartely-oscillator
C. Colpitt’s oscillator
D. Crystal oscillator
An important limitation of a crystal oscillator is____________?
An important limitation of a crystal oscillator is____________?
A. Its low output
B. Its high Q
C. Less availability of quartz crystal
D. Its high output
The value of negative feedback fraction is always _______________?
The value of negative feedback fraction is always _______________?
A. Less than 1
B. More than 1
C. Equal to 1
D. None of the above
The Q of the crystal is of the order of____________?
The Q of the crystal is of the order of____________?
A. 100
B. 1000
C. 50
D. More than 10,000
When negative voltage feedback is applied to an amplifier, its voltage gain ____________?
When negative voltage feedback is applied to an amplifier, its voltage gain ____________?
A. Is increased
B. Is reduced
C. Remains the same
D. None of the above