Related Questions

___________ 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 can be used in ___________ amplifiers
A Either power or voltage
B Only power
C Only voltage
D None of the above
Computers cannot communicate with each other directly over telephone lines because they use digital pulses whereas telephone lines use analog sound frequencies. What is the name of the device which permits digital to analog conversion at the start of a long distance transmission?
A Interface
B Modem
C Attenuation
D Teleprocessor
E 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 use ___________ transformer for impedance matching
A Step up
B Step down
C Same turn ratio
D None of the above
In transistor amplifiers, we generally use ___________ capacitors.
A Electrolytic
B Mica
C Paper
D Air
Transformer coupling is generally employed when load resistance is
A Large
B Very large
C Small
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
In RC coupling, the value of coupling capacitor is about ___________
A 100 pF
B 0.1 µF
C 0.01 µF
D 10 µF

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