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.Management Sciences
Category: Semiconductor Theory
At absolute temperature, an intrinsic semiconductor has________________?
0
A. A few free electrons
B. Many holes
C. Many free electrons
D. No holes or free electrons
The strength of a semiconductor crystal comes from______________?
A. Forces between nuclei
B. Forces between protons
C. Electron-pair bonds
D. None of the above
The resistivity of a pure silicon is about _______________?
A. 100 O cm
B. 6000 O cm
C. 3 x 105 O m
D. 6 x 10-8 O cm
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
A reverse biased pn junction has resistance of the order of________________?
A. O
B. kO
C. MO
D. None of the above
A semiconductor has ______________ temperature coefficient of resistance?
A. Positive
B. Zero
C. Negative
D. None of the above
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
The most commonly used semiconductor is________________?
A. Germanium
B. Silicon
C. Carbon
D. Sulphur
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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