1 db corresponds to_____________change in power level?
A. 50%
B. 35%
C. 26%
D. 22%
Multi-Stage Transistor Amplifiers
The lower and upper cut off frequencies are also called_____________frequencies?
The lower and upper cut off frequencies are also called_____________frequencies?
A. Sideband
B. Resonant
C. Half-resonant
D. Half-power
The ear is not sensitive to___________?
The ear is not sensitive to___________?
A. Frequency distortion
B. Amplitude distortion
C. Frequency as well as amplitude distortion
None of the above
Transformer coupling provides high efficiency because___________?
Transformer coupling provides high efficiency because___________?
A. Collector voltage is stepped up
B. resistance is low
C. collector voltage is stepped down
D. none of the above
The noise factor of an ideal amplifier expressed in db is_____________?
The noise factor of an ideal amplifier expressed in db is_____________?
A. 0
B. 1
C. 1
D. 10
Transformer coupling is used for__________amplification?
Transformer coupling is used for__________amplification?
A. Power
B. Voltage
C. Current
D. None of the above
An advantage of RC coupling scheme is the___________?
An advantage of RC coupling scheme is the___________?
A. Good impedance matching
B. Economy
C. High efficiency
D. None of the above
In an RC coupled amplifier, the voltage gain over mid-frequency range_____________?
In an RC coupled amplifier, the voltage gain over mid-frequency range_____________?
A. Changes abruptly with frequency
B. Is constant
C. Changes uniformly with frequency
D. None of the above
RC coupling is used for_____________amplification?
RC coupling is used for_____________amplification?
A. Voltage
B. Current
C. Power
D. None of the above
A radio receiver has____________of amplification?
A radio receiver has____________of amplification?
A. One stage
B. Two stages
C. Three stages
D. More than one stages