The Q of a tuned amplifier is generally _________________?
A. Less than 5
B. Less than 10
C. More than 10
D. None of the above
Transistor Tuned Amplifiers
For frequencies below resonant frequency, a series LC circuit behaves as a _____________ load?
For frequencies below resonant frequency, a series LC circuit behaves as a _____________ load?
A. Resistive
B. Capacitive
C. Inductive
D. None of the above
Tuned class C amplifiers are used for RF signals of________________?
Tuned class C amplifiers are used for RF signals of________________?
A. Low power
B. High power
C. Very high power
D. None of the above
Double tuned circuits are used in ____________ stages of a radio receiver?
Double tuned circuits are used in ____________ stages of a radio receiver?
A. IF
B. Audio
C. Output
D. None of the above
In the double tuned circuit, if the mutual inductance between the two tuned circuits is decreased, the level of resonance curve ___________________?
In the double tuned circuit, if the mutual inductance between the two tuned circuits is decreased, the level of resonance curve ___________________?
A. Remains the same
B. Is lowered
C. Is raised
D. None of the above
In parallel resonance, there is _______________?
In parallel resonance, there is _______________?
A. Both voltage and current amplification
B. Voltage amplifications
C. Current amplification
D. None of the above
If a high degree of selectivity is desired, then double-tuned circuit should have ___________ coupling?
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
For frequencies above the resonant frequency, a parallel LC circuit behaves as a ____________ load?
For frequencies above the resonant frequency, a parallel LC circuit behaves as a ____________ load?
A. Capacitive
B. Resistive
C. Inductive
D. None of the above
In series resonance, there is__________________?
In series resonance, there is__________________?
A. Voltage amplification
B. Current amplification
C. Both voltage and current amplification
D. None of the above
Frequencies above ______________ kHz are called radio frequencies?
Frequencies above ______________ kHz are called radio frequencies?
A. 2
B. 10
C. 50
D. 200