Electrical Circuit Analysis-I Quiz
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Questions and Answers

What are the three types of DC generators?

Shunt, Series, and Compound

What is the purpose of a transformer?

To convert alternating current (AC) from one voltage level to another.

What are the two types of three-phase transformer connections?

Star and Delta

What are the two main types of instrument transformers?

<p>Current transformers (CTs) and Potential transformers (PTs).</p> Signup and view all the answers

Which of these are types of electrical measuring instruments?

<p>Moving iron (A), Moving coil (B), Electrodynamic (C), Induction type (D)</p> Signup and view all the answers

What are the two categories of FET configurations?

<p>Depletion mode and Enhancement mode</p> Signup and view all the answers

The Miller Theorem is applicable for high frequency analysis of amplifiers.

<p>False (B)</p> Signup and view all the answers

Name two common types of errors in instrumentation.

<p>Systematic and Random</p> Signup and view all the answers

What are the three key parameters measured by sensors and transducers?

<p>Temperature, Pressure, and Displacement</p> Signup and view all the answers

What is the primary function of a sample-and-hold circuit?

<p>To capture and hold a signal at a specific instant in time.</p> Signup and view all the answers

What are the two main types of numerical methods for solving ordinary differential equations?

<p>Euler's method and Runge-Kutta method</p> Signup and view all the answers

What are the two types of Fourier series?

<p>Half range Fourier sine series and Half range Fourier cosine series</p> Signup and view all the answers

The Laplace transform is a mathematical technique commonly used for analyzing signals in the time domain.

<p>False (B)</p> Signup and view all the answers

What are the three key elements of a power system?

<p>Generation, Transmission, and Distribution</p> Signup and view all the answers

Which of the following describes the purpose of SCADA in power systems?

<p>To monitor and control power systems remotely (A)</p> Signup and view all the answers

Flashcards

Resistance

The ability of a circuit to conduct current, measured in ohms.

Capacitor

An electrical component that stores energy in an electric field.

Inductor

An electrical component that stores energy in a magnetic field.

Kirchhoff's Current Law (KCL)

A law stating that the sum of currents entering a node is equal to the sum of currents leaving the node.

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Kirchhoff's Voltage Law (KVL)

A law stating that the sum of voltage drops around a closed loop is equal to zero.

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Source Transformation

The process of converting a voltage source to a current source, or vice versa.

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Nodal Analysis

A technique for analyzing circuits by writing equations for each node in the circuit.

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Mesh Analysis

A technique for analyzing circuits by writing equations for each loop in the circuit.

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Transient Response

The ability of a circuit to change over time in response to a change in input.

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Laplace Transform

A mathematical tool for analyzing circuits in the time domain.

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RC Circuit

A type of circuit that contains both resistors and capacitors.

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RL Circuit

A type of circuit that contains both resistors and inductors.

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RLC Circuit

A type of circuit that contains resistors, capacitors, and inductors.

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Resonant Frequency

The frequency at which a circuit's impedance is purely resistive.

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Bandwidth

The range of frequencies over which a circuit's response is significant.

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Quality Factor (Q)

A measure of how sharply tuned a circuit is, calculated as the ratio of energy stored to energy dissipated.

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Star (Wye) Connection

A type of connection where the ends of three windings are connected together.

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Delta Connection

A type of connection where the beginning of each winding is connected to another winding's end.

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Balanced Three-Phase System

A type of three-phase system where the voltages and currents are balanced.

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Unbalanced Three-Phase System

A type of three-phase system where the voltages and currents are not balanced.

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Real Power

The power delivered to a circuit, measured in watts.

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Reactive Power

The power stored in a circuit, measured in VARs (Volt-Ampere Reactive).

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Apparent Power

The total power delivered to a circuit, measured in VA (Volt-Amperes).

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Power Triangle

A graphical representation of power in a three-phase system.

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Autotransformer

A transformer with only one winding and is used to change voltage levels.

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Signal Fidelity

The ability of a circuit to transmit electrical signals without distortion.

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Amplification

The process of magnifying the amplitude of an electrical signal.

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Amplifier

A circuit designed to amplify electrical signals.

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Gain

The ratio of output power to input power of an amplifier.

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Field Effect Transistor (FET)

A type of transistor that controls current flow using an electric field.

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Metal-Oxide Semiconductor Field-Effect Transistor (MOSFET)

A type of FET that controls current flow using the voltage applied to the gate.

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Low Frequency Amplifier

An amplifier that operates at low frequencies, typically below 1kHz.

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Attenuation

The process of reducing the amplitude of an electrical signal.

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Attenuator

A circuit designed to reduce the amplitude of an electrical signal.

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Study Notes

B. Tech. Electrical Engineering

  • Course: Electrical Circuit Analysis-I (3EE4-01)
  • Semester: II Year, III Semester
  • Credits: 3
  • Total Marks: 100 (IA: 30, ETE: 70)
  • End Term Exam Duration: 3 hours

Course Outcomes

  • Students can design circuits using nodal and mesh methods.
  • Students will learn the importance of using electrical circuit and network theorems.
  • Students will learn how to apply linearity and superposition concepts to analyze RL, RC, and RLC circuits in different domains (time and frequency).
  • Students can apply Laplace transform to analyze transient circuit analysis.

Course Contents

  • Introduction: Objective, scope, and course outcomes.
  • Basic Concepts: Active, passive elements, ideal and practical sources, Ohm's law, source transformation, Kirchoff's laws, graph theory (network graph, tree, incidence matrix, cut sets, dual network analysis), duality methods.
  • Network Theorems: Superposition, Thevenin, Norton, maximum power transfer, reciprocity, compensation theorems for networks with independent and dependent sources.
  • 1-phase and 3-phase AC Circuits: 1-phase series and parallel AC circuits, analysis of series and parallel resonant circuits, concepts of bandwidth and quality factor at resonance, 3-phase star and delta connections (balanced and unbalanced), voltage, current and impedance calculations, power in 3-phase AC systems, power triangle, complex power, analysis of three-phase AC circuits.
  • Transient Analysis: Transient analysis of RL and RC circuits under DC excitation, response of networks under step, ramp, pulse, and sinusoidal inputs, time domain, transient analysis using Laplace transform.

Suggested Books

  • Engineering Circuit Analysis, William H. Hayt et al., McGraw Hill Publications
  • Network Analysis, M.E. Van Valkenburg, Pearson Publications
  • Fundamentals of Electric Circuits, Charles K. et al., McGraw Hill Publications
  • Engineering Circuit Analysis, J. David Irwin et al., Wiley India
  • Electric Circuits, Mahmood Nahvi, McGraw Hill
  • Introduction to Electric Circuits, Richard Dorf and James A Svoboda Wiley

3EE4-02: Electrical Machines-I

  • Course Outcomes: Students will understand magnetic circuits and the principle of energy conversion, learn the basics of DC machines and transformers, evaluate performance characteristics of DC machines and transformers, and understand single-phase and polyphase transformers.
  • Course Contents:
    • Introduction, Magnetic circuits: MMF, flux, reluctance and inductance.
    • DC Generators: Construction, working principle and EMF equation, Lap and wave windings, armature reaction, commutation.
    • DC Motors: Electromagnetic energy conversion, principles, back-EMF and torque, types and characteristics of DC motors (separately excited, shunt, series).
    • Transformers: Construction, principle of operation, equivalent circuit, single-phase transformers, EMF equation, no-load and full-load operation, voltage regulation, losses and efficiency, parallel operation.
    • Three-phase Transformers: Constructional features, transformer connections (star/star, delta/delta, star/delta), zigzag/star, phase conversion using Scott connection, auto-transformers

3EE4-03: Electrical Measurements

  • Course Outcomes: Students will understand common electrical measuring instruments, use instrument transformers for high voltage and current measurements, be familiar with various resistance measurement techniques; including potentiometers, and use AC bridges.
  • Course Contents:
    • Introduction, Electrical measuring instruments, moving coil, moving iron, electrodynamic and induction type instruments, construction, operation, force equation, error analysis.
    • 3-phase metering using Blondel's theorem.
    • Instrument transformers (Current and Potential transformers), construction, operation, and tests.
    • Measurement of resistance (low, medium, high).
    • Potentionmeters (slide wire and Crompton potentiometers), use for resistance measurement and voltmeter/ammeter calibration.
    • AC bridges (Maxwell, Hay, Anderson, De-Sauty, Wien), use for various inductance, capacitance and frequency measurements.

3EE4-04: Analog Electronics

  • Course Outcomes: Analyze PN junctions, design and analyze diodes, understand BJT and FET configurations; and design BJT and FET amplifiers.
  • Course Contents:
    • Fundamental of Semiconductor Physics, classifications, carrier concentration, generation/recombination.
    • PN Junction Diode and its Applications: Junction terminologies, qualitative and quantitative analysis, ideal diode characteristics, Zener and avalanche breakdown, diode capacitances.
    • Bipolar Junction Transistors (BJTs): Structures, I-V characteristics, performance parameters, biasing (fixed bias, self bias, voltage divider bias), Load line analysis, thermal runaway and stability.
    • Field-Effect Transistors (FETs): Introduction, biasing and operation of MOSFETs, characteristics of MOSFETs.
    • Low Frequency Small Signal Amplifiers (BJT, MOSFET) - Models and small signal amplifier analysis.

3EE4-05: Power System Instrumentation

  • Course Outcomes: Understand instrumentation errors, types of transducers, amplifiers, isolators, and grounding techniques related to power systems.
  • Course Contents:
    • Errors, systematic and random errors, limits of error, combination of errors.
    • Sensors and transducers (temperature, pressure, displacement, acceleration, noise level).
    • Signal conditioning (Instrumentation amplifier, analog multipliers, timers, sample and hold, isolation amplifiers).
    • Instrumentation in power systems (measurement of voltage, current, phase angle, frequency, power, energy meters, and protective relays).
    • Power system monitoring and control (Scada, computer-based systems).

3EE3-06: Advanced Engineering Mathematics-I

  • Course Outcomes: Gain knowledge in numerical analysis, probability & statistics, and partial differential equations and Fourier series.
  • Course Contents:
    • Numerical Analysis: Interpolation (finite differences, Newton's forward and backward, Gauss's, and Lagrange), numerical differentiation and integration (trapezoidal, Simpson's 1/3 and 3/8), solution of ordinary differential equations (Euler, modified Euler, Runge-Kutta, and Milne).
    • Probability and Statistics: Discrete and continuous random variables, probability distributions (binomial, Poisson, normal, etc.), curve fitting, correlation and regression.
    • Partial Differential Equations: Classification, separation of variables and solutions to 1D heat, 1D wave, and 2D Laplace equations.
    • Fourier Series: Periodic functions, half-range Fourier series (sine, cosine), Parseval's theorem.

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Test your knowledge on Electrical Circuit Analysis-I, focused on fundamental concepts such as circuit design, network theorems, and transient analysis. This quiz covers essential topics like nodal and mesh methods, linearity, and Laplace transforms. Perfect for B. Tech Electrical Engineering students.

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