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.Management Sciences
Category: Transistor Biasing
For faithful amplification by a transistor circuit, the value of VBE should_____________for a silicon transistor?
0
A. Be zero
B. Be 0.01 V
C. Not fall below 0.7 V
D. Be between 0 V and 0.1 V
The point of intersection of d.c. and a.c. load lines represents __________________?
A. Operating point
B. Current gain
C. Voltage gain
D. None of the above
Transistor biasing represents ______________ conditions?
A. a.c
B. d.c
C. both a.c. and d.c
D. none of the above
The disadvantage of voltage divider bias is that it has _________________?
A. High stability factor
B. Low base current
C. Many resistors
D. None of the above
The operating point is also called the _______________?
A. Cut off point
B. Quiescent point
C. Saturation point
D. None of the above
In voltage divider bias, operating point is 3 V, 2 mA. If VCC = 9 V, RC = 2.2 kO, what is the value of RE ?
A. 2000 O
B. 1400 O
C. 800 O
D. 1600 O
The purpose of resistance in the emitter circuit of a transistor amplifier is to _________________?
A. Limit the maximum emitter current
B. Provide base-emitter bias
C. Limit the change in emitter current
D. None of the above
The value of stability factor for a base resistor bias is________________?
A. RB (ß+1)
B. (ß+1)RC
C. (ß+1)
D. 1-ß
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