Search
.Management Sciences
Category: Semiconductor Theory
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
The battery connections required to forward bias a pn junction are_________________?
A. +ve terminal to p and –ve terminal to n
B. -ve terminal to p and +ve terminal to n
C. -ve terminal to p and –ve terminal to n
D. None of the above
The barrier voltage at a pn junction for germanium is about________________?
A. 5 V
B. 3 V
C. Zero
D. 0.3 V
The resistivity of pure germanium under standard conditions is about_______________?
A. 6 x 104 cm
B. 60 x cm
C. 3 x 106 cm
D. 6 x 10-4 cm
A reverse bias pn junction has_____________?
A. Very narrow depletion layer
B. Almost no current
C. Very low resistance
D. Large current flow
A hole and electron in close proximity would tend to________________?
A. Repel each other
B. Attract each other
C. Have no effect on each other
D. None of the above
As the doping to a pure semiconductor increases, the bulk resistance of the semiconductor_______________?
A. Remains the same
B. Increases
C. Decreases
D. None of the above
A pn junction acts as a__________________?
A. Controlled switch
B. Bidirectional switch
C. Unidirectional switch
D. None of the above
An n-type semiconductor is______________?
A. Positively charged
B. Negatively charged
C. Electrically neutral
D. None of the above
Recent Comments