Semiconductor - Semiconductor objective questions and answers
16. The forward region of a semiconductor diobe characteristic curve is where diode appears as
A.High resistance
B.An ON switch
C.An OFF switch
D.A capacitor
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B.An ON switch
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17. In a semiconductor diode, the barrier offers opposition to
A.Majority carriers in both regions
B.Majority as well as minority carriers in both regions
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18. In case of semiconductors, recombination is merging of
A.An electrons with a hole
B.An outside electron with semiconductor electrons
C.Two or more electrons
D.Two or more holes
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19. The conduction band
A.Is always above the forbidden energy level
B.Is the region of free electrons
C.Concentrates holes for the flow of current
D.Is a range of energies corresponding to the energies of the free electrons
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20. The temperature co-efficient of an intrinsic semiconductor is.......
A.Zero
B.Positive
C.Negative
D.None of them
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