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.Management Sciences
Category: Single Stage Transistor Amplifiers
In order to get more voltage gain from a transistor amplifier, the transistor used should have_________________?
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A. Thin base
B. Thin collector
C. Wide emitter
D. None of the above
The input capacitor in an amplifier is the______________ capacitor?
A. Coupling
B. Bypass
C. Leakage
D. None of the above
In the d.c. equivalent circuit of a transistor amplifier, the capacitors are considered__________________?
A. Short
B. Open
C. Partially short
D. None of the above
When a transistor amplifier is operating, the current in any branch is _______________?
A. Sum of a.c. and d.c.
B. c. only
C. c. only
D. difference of a.c. and d.c.
CC configuration is used for impedance matching because its ________________?
A. Input impedance is very high
B. Input impedance is low
C. Output impedance is very low
D. None of the above
If the collector supply is 10V, then collector cut off voltage under d.c. conditions is _______________?
A. 20 V
B. 5 V
C. 2 V
D. 10 V
If a transistor amplifier draws 2mA when input voltage is 10 V, then its input impedance is ____________?
A. 20 kΩ
B. 2 kΩ
C. 10 kΩ
D. 5 kΩ
A single stage transistor amplifier with collector load RC and emitter resistance RE has a d.c. load of ________________________?
A. RC
B. RC || RE
C. RC – RE
D. RC + RE
The purpose of d.c. conditions in a transistor is to___________________?
A. Reverse bias the emitter
B. Forward bias the collector
C. Set up operating point
D. None of the above
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