Computer Programming MCQs

5739 MCQs  (Page 506 of 574)

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The maximum efficiency of transformer coupled class A power amplifier is _______________?
A. 30%
B. 50%
C. 80%
D. 45%
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Power amplifiers handle ______________ signals compare to voltage amplifiers?
A. Small
B. Very small
C. Large
D. None of the above
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The maximum collector efficiency of class B operation is ________________?
A. 50%
B. 90%
C. 5%
D. 5%
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In class A operation, the operating point is generally located_____________of the d.c. load line?
A. At cut off point
B. At the middle
C. At saturation point
D. None of the above
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A 2-transistor class B power amplifier is commonly called ______________ amplifier?
A. Dual
B. Push-pull
C. Symmetrical
D. Differential
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A class A power amplifier is sometimes called______________amplifier?
A. Symmetrical
B. Single-ended
C. Reciprocating
D. Differential
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If a transistor is operated in such a way that output current flows for 60o of the input signal, then it is ______________ operation?
A. Class a
B. Class b
C. Class c
D. None of the above
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Low efficiency of a power amplifier results in_________________?
A. Low forward bias
B. Less battery consumption
C. More battery consumption
D. None of the above
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A power amplifier has comparatively __________________ ß ?
A. Small
B. Large
C. Very large
D. None of the above
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The output stage of a multistage amplifier usually employs______________?
A. Push-pull amplifier
B. Preamplifier
C. Class a power amplifier
D. None of the above
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Word of the Day
16 Jul
Volatile
(of a substance) easily evaporated at normal temperatures.
بدلتے مزاج والا، کافور صفت

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