Search
.Management Sciences
Category: Transistor Tuned Amplifiers
The voltage gain of a tuned amplifier is____________at resonant frequency
A. Minimum
B. Maximum
C. Half-way between maximum and minimum
D. Zero
If L/C ratio of a parallel LC circuit is increased, the Q of the circuit______________?
A. Is decreased
B. Is increased
C. Remains the same
D. None of the above
A resonant circuit contains ____________elements?
A. R and L only
B. R and C only
C. Only R
D. L and C
If a high degree of selectivity is desired, then double-tuned circuit should have ___________ coupling?
A. Loose
B. Tight
C. Critical
D. None of the above
In the above question, what are the values of cut-off frequencies?
A. 140 kHz , 60 kHz
B. 1020 kHz , 980 kHz
C. 1030 kHz , 970 kHz
D. None of the above
For frequencies below resonant frequency, a series LC circuit behaves as a _____________ load?
A. Resistive
B. Capacitive
C. Inductive
D. None of the above
The Q of a tuned circuit refers to the property of_______________?
A. Sensitivity
B. Fidelity
C. Selectivity
D. None of the above
At parallel resonance, the net reactive component circuit current is _______________?
A. Capacitive
B. Zero
C. Inductive
D. None of the above
Recent Comments