A. Large value of coupling capacitor
B. Low efficiency
C. Large number of components
D. None of the above
Related Mcqs:
- 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 most costly coupling is _______________ coupling?
A. RC
B. Direct
C. Impedance
D. Transformer - ________________ coupling is generally employed in power amplifiers?
A. Transformer
B. RC
C. direct
D. Impedance - Power amplifiers generally use transformer coupling because transformer permits______________?
A. Cooling of the circuit
B. Impedance matching
C. Distortionless output
D. Good frequency response - RC coupling is not used to amplify extremely low frequencies because____________?
A. There is considerable power loss
B. There is hum in the output
C. Electrical size of coupling capacitor becomes very 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 - RC coupling is used for_____________amplification?
A. Voltage
B. Current
C. Power
D. None of the above - 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 purpose of RC or transformer coupling is to_____________?
A. Block a.c.
B. Separate bias of one stage from another
C. Increase thermal stability
None of the above
