Computer Programming MCQs

5739 MCQs  (Page 227 of 574)

Attempt Computer Programming MCQs Quiz
IC = [a / (1 – a )] IB +_____________?
A. Iceo
B. Icbo
C. Ic
D. (1 – a ) ib
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For the same secondary voltage, the output voltage from a centre-tap rectifier is___________ than that of bridge rectifier?
A. Twice
B. Thrice
C. Four time
D. One-half
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The maximum efficiency of a half-wave rectifier is _____________?
A. 40.6 %
B. 81.2 %
C. 50 %
D. 25 %
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The ripple factor of a half-wave rectifier is_________________?
A. 2
B. 1.21
C. 2.5
D. 0.48
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Mains a.c. power is converrted into d.c. power for_________________?
A. Lighting purposes
B. Heaters
C. Using in electronic equipment
D. None of the above
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A zener diode is________________ device?
A. A non-linear
B. A linear
C. An amplifying
D. None of the above
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In the breakdown region, a zener didoe behaves like a _______________source?
A. Constant voltage
B. Constant current
C. Constant resistance
D. None of the above
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Which of the following is not associated with a p-n junction?
A. Junction capacitance
B. Charge storage capacitance
C. Depletion capacitance
D. Channel length modulation
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A series resistance is connected in the zener circuit to_______________?
A. Properly reverse bias the zener
B. Protect the zener
C. Properly forward bias the zener
D. None of the above
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A zener diode has ______________ breakdown voltage?
A. Undefined
B. Sharp
C. Zero
D. None of the above
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Word of the Day
23 Jul
Aisle
a passage between rows of seats in a building such as a church or theatre, an aircraft, or train.
طویل تنگ راستہ، نشتوں کے درمیان راستہ

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