The frequency response of transformer coupling is___________?
(A) Good
(B) Very good
(C) Excellent
(D) Poor
The lower and upper cut off frequencies are also called_____________frequencies?
(A) Sideband
(B) Resonant
(C) Half-resonant
(D) Half-power
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
Transformer coupling is used for__________amplification?
(A) Power
(B) Voltage
(C) Current
(D) None of the above
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
When a multistage amplifier is to amplify d.c. signal, then one must use_____________coupling?
(A) RC
(B) Transformer
(C) Direct
(D) None of the above
In practice, voltage gain is expressed______________?
(A) In db
(B) In volts
(C) As a number
(D) None of the above
The final stage of a multistage amplifier uses______________?
(A) RC coupling
(B) Transformer coupling
(C) Direct coupling
(D) Impedance coupling
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