In this section of Electronic Devices and Circuits.It contain Tuned Voltage Amplifiers MCQs (Multiple Choice Questions Answers).All the MCQs (Multiple Choice Question Answers) requires in depth reading of Electronic Devices and Circuits Subject as the hardness level of MCQs have been kept to advance level.These Sets of Questions are very helpful in Preparing for various Competitive Exams and University level Exams.
This Section covers below lists of topics :
- Tuned Voltage Amplifiers MCQs.
- Tuned circuits MCQs.
- Resonance MCQs
- Series Resonance circuit MCQs
- Parallel Resonance circuit MCQs
- Single tuned voltage Amplifier,Double tuned voltage Amplifier MCQs
Practice it now to sharpen your concept.
PRACTICE IT NOW TO SHARPEN YOUR CONCEPT AND KNOWLEDGE
1. Double tuned amplifier circuit
- Two transistor are employed
- Two tuning circuits are employed
- Two input signals are fed
- None of these
B. Two tuning circuits are employed
2. Q factor of a resonance circuit is given as
- Q=R/2πƒr
- Q=2πƒrL/R
- Q=2πƒrC/R
- Q=R/2πƒrC
B. Q=2πƒrL/R
3. The impedance of an LC parallel circuit at resonance is given as
- Zr=L/CR
- Zr=CR/L
- Zr=LR/C
- Zr=R/LC
A. Zr=L/CR
4. An amplifier of passband 450khz to 460 khz will be named as
- Video amplifier
- Audio amplifier
- Tuned voltage amplifier
- Power amplifier
C. Tuned voltage amplifier
5. For series or parallel LC circuit, resonance occurs when
- XL
- XC
- XL greater than equal to Xc
- XL=Xc
- XC
D. XL=Xc
6. A series resonant circuit, the impedance at resonance is
- Minimum, and is equal to the resistance of the circuit
- Maximum and is always more than resistance of the circuit
- Minimum and equal to L/CR
- None of these
A. Minimum, and is equal to the resistance of the circuit
7. A tuned amplifier is never used in
- Radio receiver
- Television receiver
- Radio transmitter
- Public address system
D. Public address system
8. A narrow band amplifier is one that is bandwidth
- limited to 1% of its Central frequency
- Limited to 2000 Hz only
- Limited to 4khz only
- None of these
A. limited to 1% of its Central frequency
9. Benefit of tuned circuit is given as
- BW=Q/Fr
- BW=Lfr/CR
- BW=Fr/Q
- BW=CR/fr
C. BW=Fr/Q
10. Usually double tuned amplifier circuit is employed in
- Audio stage of radio receiver
- Mixing stage of radio receiver
- Output stage of radio receiver
- IF stage of radio receiver
D. IF stage of radio receiver
