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
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
The best frequency response is of ___________ coupling
A RC
B Transformer
C Direct
D None of the above
Transformer coupling is used for ___________ amplification
A Power
B Voltage
C Current
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 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
capacitors are used for audio frequency and radio frequency coupling and tuning.
A Air
B Mica
C Plastic film
D Ceramic
The problem of Electrostatic coupling in a transformer is acute at
A Low frequencies
B Power frequencies
C High frequencies
D High load on the transformer

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