A. 20 kΩ
B. 2 kΩ
C. 10 kΩ
D. 5 kΩ
Single Stage Transistor Amplifiers
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
In a CE amplifier, the phase difference between voltage across collector load RC and signal voltage is _________________?
A. 180o
B. 270o
C. 90o
D. 0o
A transistor amplifier has high output impedance because ______________?
A. Emitter is heavily doped
B. Collector has reverse bias
C. Collector is wider than emitter or base
D. None of the above
If the input capacitor of a transistor amplifier is short-circuited, then_________________?
A. Transistor will be destroyed
B. Biasing conditions will change
C. Signal will not reach the base
D. None of the above
In a CE amplifier, voltage gain =____________________ x RAC/Rin?
A. α
B. (1 + α)
C. (1+ β)
D. β
The d.c. load of a transistor amplifier is generally_______________ that of a a.c. load?
A. The same as
B. Less than
C. More than
D. None of the above
The phase difference between the output and input voltages of a CE amplifier is _____________?
A. 180o
B. 0o
C. 90o
D. 270o
