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
A. Its low output
Oscillators MCQs
Oscillators MCQs. Multiple Choice Questions and Answers on the topic of Oscillators in Electrical and Electronics Engineering and related subjects.
____________ is a fixed frequency oscillator ?
A. Phase-shift oscillator
B. Hartely-oscillator
C. Colpitt’s oscillator
D. Crystal oscillator
D. Crystal oscillator
In a certain oscillator Av = 50. The attention of the feedback circuit must be ?
A. 1
B. 01
C. 10
D. 02
D. 02
In an LC oscillator, if the value of L is increased four times, the frequency of oscillations is ?
A. Increased 2 times
B. Decreased 4 times
C. Increased 4 times
D. Decreased 2 times
D. Decreased 2 times
The signal generator generally used in the laboratories is ___________ oscillator ?
A. Wien-bridge
B. Hartely
C. Crystal
D. Phase shift
A. Wien-bridge
Quartz crystal is most commonly used in crystal oscillators because ?
A. It has superior electrical properties
B. It is easily available
C. It is quite inexpensive
D. None of the above
A. It has superior electrical properties
A Wien bridge oscillator uses ___________ feedback ?
A. Only positive
B. Only negative
C. Both positive and negative
D. None of the above
C. Both positive and negative
An oscillator converts ?
A. power into d.c. power
B. power into a.c. power
C. mechanical power into a.c. power
D. none of the above
B. power into a.c. power
In an LC oscillator, the frequency of oscillator is ____________ L or C ?
A. Proportional to square of
B. Directly proportional to
C. Independent of the values of
D. Inversely proportional to square root of
D. Inversely proportional to square root of
Hartley oscillator is commonly used in ?
A. Radio receivers
B. Radio transmitters
C. TV receivers
D. None of the above
A. Radio receivers