On this page, we will review the Analog Electronics Short Notes PDF Part 17. Welcome to Poly Notes Hub, a leading destination for analog electronics notes for engineering students.
Author Name: Arun Paul
Analog Electronics Short Notes Pdf Part 17
Here we have listed some analog electronics short notes for all types of exams like diploma engineering, degree engineering, and GATE exam and many more. In every page, we have listed 10 short analog electronics questions and answers and anyone can download it by a single click for future use.
1. What is Tuned Amplifiers?
Tuned amplifiers are amplifiers designed to amplify signals of a particular frequency or narrow band of frequencies using resonant circuits, making them ideal for radio-frequency and communication applications.
2. What is Resonant Circuit?
A resonant circuit is a combination of inductance (L) and capacitance (C) that resonates at a specific frequency, allowing maximum voltage or current at that frequency to pass through.
3. What is Electrical Resonance?
Electrical resonance occurs in a circuit when the inductive reactance equals the capacitive reactance, resulting in maximum energy transfer and minimum impedance at the resonant frequency.
4. What is Quality Factor in Resonance Circuit?
The Quality Factor (Q-factor) measures the sharpness of resonance in a circuit. A higher Q indicates lower energy loss and a narrower bandwidth, enhancing selectivity in tuned circuits.
5. What is Reactive Power?
Reactive power is the power that alternates between the source and reactive components (inductors and capacitors) in an AC circuit but does not perform any useful work.
6. What is Inductive Reactance?
Inductive reactance is the opposition offered by an inductor to the flow of alternating current, increasing with frequency.
7. What is Capacitive Reactance?
Capacitive reactance is the opposition offered by a capacitor to the flow of alternating current, decreasing with frequency.
8. What are the advantages of Tuned Amplifier?
Tuned amplifiers offer high selectivity, better signal-to-noise ratio, improved gain at desired frequencies, and are ideal for radio and communication circuits targeting specific frequency bands.
9. What is Bandwidth?
Bandwidth is the range of frequencies a tuned amplifier or filter can effectively pass or amplify, typically measured between the lower and upper half-power points of the circuit.
10. What is Single Tuned Amplifier?
A single tuned amplifier uses one parallel LC resonant circuit in the collector of a transistor to amplify signals at a specific frequency with good selectivity and gain.