Computer Programming MCQs

5739 MCQs  (Page 516 of 574)

Attempt Computer Programming MCQs Quiz
In an intrinsic semiconductor, the number of free electrons_____________?
A. Equals the number of holes
B. Is greater than the number of holes
C. Is less than the number of holes
D. None of the above
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A pn junction acts as a__________________?
A. Controlled switch
B. Bidirectional switch
C. Unidirectional switch
D. None of the above
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The leakage current across a pn junction is due to________________?
A. Minority carriers
B. Majority carriers
C. Junction capacitance
D. None of the above
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The leakage current in a pn junction is of the order of________________?
A. Aa
B. Ma
C. Ka
D. Μa
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At room temperature, an intrinsic semiconductor has_______________?
A. Many holes only
B. A few free electrons and holes
C. Many free electrons only
D. No holes or free electrons
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With forward bias to a pn junction , the width of depletion layer__________________?
A. Decreases
B. Increases
C. Remains the same
D. None of the above
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A forward biased pn junction diode has a resistance of the order of_____________?
A. O
B. Ko
C. Mo
D. None of the above
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At room temperature, an intrinsic silicon crystal acts approximately as_______________?
A. A battery
B. A conductor
C. An insulator
D. A piece of copper wire
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The impurity level in an extrinsic semiconductor is about_______________of pure semiconductor ?
A. 10 atoms for 108 atoms
B. 1 atom for 108 atoms
C. 1 atom for 104 atoms
D. 1 atom for 100 atoms
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In a semiconductor, current conduction is due to________________?
A. Only holes
B. Only free electrons
C. Holes and free electrons
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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