A. Cooling of the circuit
B. Impedance matching
C. Distortionless output
D. Good frequency response
Related Mcqs:
- ________________ coupling is generally employed in power amplifiers?
A. Transformer
B. RC
C. direct
D. Impedance - Power amplifiers handle ______________ signals compare to voltage amplifiers?
A. Small
B. Very small
C. Large
D. None of the above - Transformer coupling is generally employed when load resistance is______________?
A. Large
B. Very large
C. Small
D. None of the above - The most costly coupling is _______________ coupling?
A. RC
B. Direct
C. Impedance
D. Transformer - In an RC coupling scheme, the coupling capacitor CC must be large enough______________?
A. To pass d.c. between the stages
B. Not to attenuate the low frequencies
C. To dissipate high power
D. None of the above - In RC coupling, the value of coupling capacitor is about_______________?
A. 100 pF
B. 0.1 µF
C. 0.01 µF
D. 10 µF - The output transformer used in a power amplifier is a _____________ transformer?
A. 1:1 ratio
B. Step-up
C. Step-down
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 - In transistor amplifiers, we generally use______________ capacitors?
A. Electrolytic
B. Mica
C. Paper
D. Air - Transformer coupling can be used in______________amplifiers?
A. Either power or voltage
B. Only power
C. Only voltage
D. None of the above