Related Questions

Power amplifiers handle ___________ signals compare to voltage amplifiers
A Small
B Very small
C Large
D None of the above
Power amplifiers generally use transformer coupling because transformer per-mits
A Cooling of the circuit
B Impedance matching
C Distortionless output
D Good frequency response
Transformer coupling can be used in ___________ amplifiers
A Either power or voltage
B Only power
C Only voltage
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
The most costly coupling is ___________ coupling
A RC
B Direct
C Impedance
D Transformer
Transformer coupling is generally employed when load resistance is
A Large
B Very large
C Small
D None of the above
A contractor employed 30 men to do a piece of work in 38 days. After 25 days , he employed 5 men more and the work was finished one day earlier. How many days he would have been behind, if he had not employed additional men?
A 1
B 114
C 134
D 112
In transistor amplifiers, we generally use ___________ capacitors.
A Electrolytic
B Mica
C Paper
D Air
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

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