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**Introduction to Electronic Circuit Analysis**

With the motive of becoming capable of applying mathematical, scientific, and engineering knowledge to engineering problems, students develop their skills very well. The theory of electric circuit and electromagnetic theory are the two fundamental theories based on which all electrical engineering branches are built.

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Electronics Circuit Analysis Question paper | Download |

**Reference Books**

- Electric Circuits– (Schaum’s outlines) by Mahmood Nahvi& Joseph Edminister, Adapted by KumaRao, 5th Edition –McGraw Hill.
- Electric Circuits by David A. Bell, Oxford publications
- Introductory Circuit Analysis by Robert L Boylestad, Pearson Publications
- Circuit Theory(Analysis and Synthesis) by A.Chakrabarthi, DhanpatRai&Co.
- Engineering Circuit Analysis by William Hayt and Jack E.Kemmerley, McGraw Hill Company,6 th edition
- Network Analysis: Van Valkenburg; Prentice-Hall of India Private Ltd
- Fundamentals of Electrical Circuits by Charles K.Alexander and Mathew N.O.Sadiku, McGraw Hill Education (India)
- Linear Circuit Analysis by De Carlo, Lin, Oxford publications

**Syllabus**

UNIT-I: Introduction to Electrical Circuits

Passive components and their V-I relations. Sources (dependent and independent) -Kirchoff’s laws, Network reduction techniques (series, parallel, series-parallel, star-to-delta and delta-to-star transformation). source transformation technique, nodal analysis, and mesh analysis.

UNIT-II: Network topology

Definitions of Graph and Tree, Basiccutset and tieset matrices for planar networks, Loop and nodal methods of analysis of networks with dependent and independent voltage and current sources, Duality and Dual networks.

UNIT-III: Magnetic Circuit

The basic definition of MMF, flux, and reluctance. The analogy between electrical and magnetic circuits.Faraday’s laws of electromagnetic induction Concept of self and mutual inductance. Dot convention-coefficient of coupling and composite magnetic circuit.Analysis of series and parallel magnetic circuits.

UNIT-IV: Single Phase A.C Systems

Periodic waveforms (determination of rms, average value and form factor). Concept of phase angle and phase difference – Waveforms and phasor diagrams for lagging, leading networks. Complex and polar forms of representations, steady state analysis of R, L and C circuits. Power Factor and its significance real, reactive power and apparent power, the waveform of instantaneous power triangle and complex power

UNIT-V: Analysis of AC Networks

Extension of node and mesh analysis to AC networks, Numerical problems on sinusoidal steady state analysis, Series and parallel resonance, Selectively band width and Quasi factor, Introduction to locus diagram.

UNIT-VI: Network theorems (DC & AC Excitations)

Superposition theorem, Thevenin’s theorem, Norton’s theorem, Maximum Power Transfer Theorem, Reciprocity theorem, Millman’s theorem, and compensation theorem.

**Important Questions**

- What is a Clapp oscillator and discuss its advantages compared to Colpitts oscillator?
- What is a power amplifier and are classify them based on a class of operation and also compare them
- Derive the expression for the conversion efficiency of a Class B Power amplifier.
- Draw the diagram of a capacitance coupled tuned amplifier and derive an expression for its quality factor.
- Show that Bandwidth decreases with cascading of single tuned amplifiers.
- Draw the circuit for CASCODE Amplifier. Explain its working, obtain the overall values of the circuit in terms of h-parameters.
- Discuss the effect of cascading on the bandwidth of multistage amplifiers.
- Enumerate and explain with necessary derivations the characteristics that get affected with negative feedback.
- Analyze CE with a Re circuit using linear analysis and a negative feedback circuit.
- Derive the frequency of oscillation and condition for sustained oscillation in a FET based RC Phase shift oscillator.
- What is a Giacelletto model of a Transistor? Derive the relationship between various parameters.
- A single stage Common Emitter amplifier is measured to have a voltage-gain bandwidth fH of 5 MHz’s with RL = 500 Ohms. Assume hfe = 100, gm = 100 mA/V, rbb’ = 1000, Cc = 1 pf, and fT = 400 MHz’s .Find the value of the source resistance that will give the required bandwidth.