RC coupling is used for_____________amplification?
(A) Voltage
(B) Current
(C) Power
(D) None of the above
A radio receiver has____________of amplification?
(A) One stage
(B) Two stages
(C) Three stages
(D) More than one stages
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
For highest power gain, one would use _________________configuration?
(A) CC
(B) CB
(C) CE
(D) none of the above
In transistor amplifiers, we generally use______________ capacitors?
(A) Electrolytic
(B) Mica
(C) Paper
(D) Air
The value of collector load RC in a transistor amplifier is _______________the output impedance of the transistor?
(A) The same as
(B) Less than
(C) More than
(D) None of the above
The output power of a transistor amplifier is more than the input power because the additional power is supplied by__________________?
(A) Transistor
(B) Biasing circuit
(C) Collector supply VCC
(D) None of the above
RC coupling is generally confined to low power applications because of____________?
(A) Large value of coupling capacitor
(B) Low efficiency
(C) Large number of components
(D) None of the above
An amplifier receives 0.1 W of input signal and delivers 15 W of signal power. What is the power gain in db?
(A) 8 db
(B) 6 db
(C) 5 db
(D) 4 db
The gain of an amplifier is expressed in db because_____________?
(A) It is a simple unit
(B) Calculations become easy
(C) Human ear response is logarithmic
(D) None of the above