The element that has the biggest size in a transistor is____________?
A. Collector
B. Base
C. Emitter
D. Collector-base-junction
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An oscillator produces___________oscillations?
A. Damped
B. Undamped
C. Modulated
D. None of the above
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If the crystal frequency changes with temperature, we say that crystal has___________temperature coefficient?
A. Positive
B. Zero
C. Negative
D. None of the above
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An LC oscillator cannot be used to produce ____________frequencies?
A. High
B. Audio
C. Very low
D. Very high
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In an LC transistor oscillator, the active device is___________?
A. Lc tank circuit
B. Biasing circuit
C. Transistor
D. None of the above
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An oscillator employs___________feedback?
A. Positive
B. Negative
C. Neither positive nor negative
D. Data insufficient
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In a phase shift oscillator, we use____________RC sections?
A. Two
B. Three
C. Four
D. None of the above
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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
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In a certain oscillator Av = 50. The attention of the feedback circuit must be___________?
A. 1
B. 01
C. 10
D. 02
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____________is a fixed frequency oscillator?
A. Phase-shift oscillator
B. Hartely-oscillator
C. Colpitt’s oscillator
D. Crystal oscillator
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Word of the Day
14 Sep
Sovereignty
supreme power or authority.
اقتدار، حکومت، راج

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