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