Related Questions

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
Power amplifiers handle ___________ signals compare to voltage amplifiers
A Small
B Very small
C Large
D None of the above
___________ coupling is generally employed in power amplifiers
A Transformer
B RC
C direct
D Impedance
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
In transistor amplifiers, we use ___________ transformer for impedance matching
A Step up
B Step down
C Same turn ratio
D None of the above
Transformer coupling is used for ___________ amplification
A Power
B Voltage
C Current
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
D None of the above
The frequency response of transformer coupling is ___________
A Good
B Very good
C Excellent
D Poor

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