99. 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
100. ____ is a fixed frequency oscillator.
A. Phase-shift oscillator
B. Hartley oscillator
C. Colpitt's oscillator
D. Crystal oscillator
101. 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
102. 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
103. The signal generator generally used in the laboratories is _____ oscillator.
A. Wien-bridge
B. Hartly
C. Crystal
D. Phase shift
104. A tuned amplifier uses ____ load.
A. resistive
B. capacitive
C. LC tank
D. inductive
105. A tuned amplifier is generally operated in _____ operation.
A. class A
B. class C
C. class B
D. none of the above
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