Related Questions

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 frequency response of transformer coupling is ___________
A Good
B Very good
C Excellent
D Poor
capacitors are used for audio frequency and radio frequency coupling and tuning.
A Air
B Mica
C Plastic film
D Ceramic
A control system is unstable, if the open loop frequency response exhibits an amplitude ratio exceeding unity at the crossover frequency. This is __________ criterion.
A Bode stability
B Nyquist
C Routh stability
D None of these
According to Bode stability criterian, a system is unstable, if the open loop frequency response exhibits an amplitude ratio exceeding unity at frequency for which phase lag is
A 0°
B 45°
C 90°
D 180°
The frequency generated by each decade in a direct frequency synthesizer is much higher than the frequency shown; this is done to
A Reduce the spurious frequency problem
B Increase the frequency stability of the synthesizer
C Reduce the number of decades
D Reduce the number of crystals required
RC coupling is used for ___________ amplification
A Voltage
B Current
C Power
D None of the above
Transformer coupling is used for ___________ amplification
A Power
B Voltage
C Current
D None of the above

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