A. Block a.c.
B. Separate bias of one stage from another
C. Increase thermal stability
None of the above
Related Mcqs:
- Power amplifiers generally use transformer coupling because transformer permits______________?
A. Cooling of the circuit
B. Impedance matching
C. Distortionless output
D. Good frequency response - 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 - Transformer coupling is used for__________amplification?
A. Power
B. Voltage
C. Current
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 frequency response of transformer coupling is___________?
A. Good
B. Very good
C. Excellent
D. Poor - Transformer coupling is generally employed when load resistance is______________?
A. Large
B. Very large
C. Small
D. None of the above - Transformer coupling can be used in______________amplifiers?
A. Either power or voltage
B. Only power
C. Only voltage
D. None of the above - The purpose of a coupling capacitor in a transistor amplifier is to ___________________?
A. Increase the output impedance of transistor
B. Protect the transistor
C. Pass a.c. and block d.c.
D. Provide biasing
