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.Management Sciences
Category: Transistor Biasing
For faithful amplification by a transistor circuit, the value of VCE should______________for silicon transistor?
0
A. Not fall below 1 V
B. Be zero
C. Be 0.2 V
D. None of the above
When the temperature changes, the operating point is shifted due to _______________?
A. Change in ICBO
B. Change in VCC
C. Change in the values of circuit resistance
D. None of the above
The disadvantage of base resistor method of transistor biasing is that it_________________?
A. Is complicated
B. Is sensitive to changes in ß
C. Provides high stability
D. None of the above
Thermal runaway occurs when_________________?
A. Collector is reverse biased
B. Transistor is not biased
C. Emitter is forward biased
D. Junction capacitance is high
In a transistor amplifier circuit VCE = VCB +________________?
A. VBE
B. 2VBE
C. 5 VBE
D. None of the above
The operating point ________________ on the a.c. load line?
A. Also line
B. Does not lie
C. May or may not lie
D. Data insufficient
If the temperature increases, the value of VCE_________________?
A. Remains the same
B. Is increased
C. Is decreased
D. None of the above
For proper amplification by a transistor circuit, the operating point should be located at the_____________ of the d.c. load line?
A. The end point
B. Middle
C. The maximum current point
D. None of the above
The biasing circuit has a stability factor of 50. If due to temperature change, ICBO changes by 1 µA, then IC will change by___________________?
A. 100 µA
B. 25 µA
C. 20 µA
D. 50 µA
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