At 100% modulation, the power in each sideband is _____________ of that of carrier?
A. 50%
B. 40%
C. 60%
D. 25%
Month: December 2018
Overmodulation (amplitude) occurs when signal amplitude is _____________ carrier amplitude?
Overmodulation (amplitude) occurs when signal amplitude is _____________ carrier amplitude?
A. Equal to
B. Greater than
C. Less than
D. None of the above
Over modulation results in ______________?
Over modulation results in ______________?
A. Weakening of the signal
B. Excessive carrier power
C. Distortion
D. None of the above
Which Bank recently has proposed a $7.5-billion lending programme for Pakistan for next three years?
Which Bank recently has proposed a $7.5-billion lending programme for Pakistan for next three years?A. World Bank
B. ADB
C. Islamic Bank
D. AIIB
B. ADB
C. Islamic Bank
D. AIIB
Famous Fruit of Larkana is________?
Famous Fruit of Larkana is________?
A. Banana
B. Orange
C. Apple
D. Guava
Language of Gandhara Civilization was___________?
Language of Gandhara Civilization was___________?
A. Sanskrit
B. Hindi
C. Prakrit
D. None of these
In all base driver amplifiers__________?
In all base driver amplifiers__________?
A. ac collector voltage is 180° out of phase with ac base voltage
B. ac emitter voltage is 180° out of phase with ac base voltage
C. ac collector voltage is in phase with ac base voltage
D. none of the above
The encapsulation of transistor is necessary for__________?
The encapsulation of transistor is necessary for__________?
A. preventing radio interference
B. preventing photo-emission effects
C. avoiding loss of free electrons
D. mechanical ruggedness
The cascade amplifier is a multistage configuration of__________?
The cascade amplifier is a multistage configuration of__________?
A. CC-CB .
B. CE-CB
C. CB-CC
D. CE-CC
Three identical amplifiers with each one having a voltage gain of 50,input resistance of 1KΩ & output resistance of 250 ,are cascaded.The open circuit voltage gain of combined amplifier is_________?
Three identical amplifiers with each one having a voltage gain of 50,input resistance of 1KΩ & output resistance of 250 ,are cascaded.The open circuit voltage gain of combined amplifier is_________?
A. 49dB
B. 51dB
C. 98dB
D. 102dB