In order to get more voltage gain from a transistor amplifier, the transistor used should have_________________?
(A) Thin base
(B) Thin collector
(C) Wide emitter
(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
The purpose of emitter capacitor (i.e. capacitor across RE) is to ______________?
(A) Avoid voltage gain drop
(B) Forward bias the emitter
(C) Reduce noise in the amplifier
(D) None of the above
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
In the a.c. equivalent circuit of a transistor amplifier, the capacitors are considered ___________________?
(A) Short
(B) Open
(C) Partially open
(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
If the power and current gains of a transistor amplifier are 16500 and 100 respectively, then voltage gain is_____________________?
(A) 165
(B) 165 x 104
(C) 100
(D) None of the above
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