The Q of a tuned circuit refers to the property of_______________?
The Q of a tuned circuit refers to the property of_______________? A. Sensitivity B. FidelityC. Selectivity D. None of the above
The Q of a tuned circuit refers to the property of_______________? A. Sensitivity B. FidelityC. Selectivity D. None of the above
In a parallel LC circuit, if the signal frequency is decreased below the resonant frequency, then________________? A. XL decreases and XC increases B. XL increases and XC decreases C. Line current becomes minimum D. None of the above
The Q of a tuned amplifier is 50. If the resonant frequency for the amplifier is 1000kHZ, then bandwidth is __________________? A. 10kHz B. 40 kHz C. 30 kHzD. 20 kHz
For frequencies above the resonant frequency , a series LC circuit behaves as a ____________load? A. ResistiveB. Inductive C. Capacitive D. None of the above
A class C amplifier always drives _____________load? A. A pure resistive B. A pure inductive C. A pure capacitiveD. A resonant tank
For frequencies below the resonant frequency , a parallel LC circuit behaves as a ______________load? A. Inductive B. Resistive C. Capacitive D. None of the above
In the above question, what are the values of cut-off frequencies? A. 140 kHz , 60 kHzB. 1020 kHz , 980 kHz C. 1030 kHz , 970 kHz D. None of the above
At parallel resonance, the phase angle between the applied voltage and circuit current is _____________? A. 90o B. 180oC. 0o D. None of the above
At parallel resonance, the ratio L/C is ______________? A. Very large B. Zero C. Small D. None of the above
If L/C ratio of a parallel LC circuit is increased, the Q of the circuit______________? A. Is decreasedB. Is increased C. Remains the same D. None of the above