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.Management Sciences
Category: Single Stage Transistor Amplifiers
The input capacitor in an amplifier is the______________ capacitor?
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A. Coupling
B. Bypass
C. Leakage
D. None of the above
If RC and RL represent the collector resistance and load resistance respectively in a single stage transistor amplifier, then a.c. load is____________________?
A. RL + RC
B. RC || RL
C. RL – RC
D. RC
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
The purpose of a coupling capacitor in a transistor amplifier is to ___________________?
A. Increase the output impedance of transistor
B. Protect the transistor
C. Pass a.c. and block d.c.
D. Provide biasing
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