B. Tech E&I Semester 3 Network Theory Exam
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Questions and Answers

What is a non-linear network?

A network whose parameters are not constant with respect to voltage or current.

What is a passive network?

A network that does not contain any independent sources of energy.

What is a distributed network?

A network whose parameters are distributed over a continuous region of space.

What are the different types of energy sources?

<p>Ideal and non-ideal</p> Signup and view all the answers

What is node analysis?

<p>A method of analyzing circuits by applying Kirchhoff's Current Law (KCL) at each node of the circuit.</p> Signup and view all the answers

State the maximum power transfer theorem.

<p>Maximum power is transferred from a source to a load when the load resistance is equal to the source resistance.</p> Signup and view all the answers

How can you obtain delta network impedances from star network impedances?

<p>Using delta-star conversion formulas.</p> Signup and view all the answers

State and prove the superposition theorem.

<p>In a linear circuit with multiple independent sources, the total response of the circuit is the sum of the responses due to each individual source acting alone, with all other sources turned off.</p> Signup and view all the answers

What are the properties of Laplace transform?

<p>Linearity, Time-invariance, Time-scaling, Differentiation in the s-domain, Integration in the s-domain, Initial value theorem, Final value theorem, Shifting theorem, Convolution theorem.</p> Signup and view all the answers

What is the transient and steady-state response for an RC circuit?

<p>Transient response is the temporary behavior of the circuit as it transitions to a new equilibrium state after an input change. Steady-state response is the long-term behavior of the circuit once the transient response has died out.</p> Signup and view all the answers

What is the significance of general and particular solutions?

<p>General solutions represent the total response of a circuit, including both the transient and steady-state components. Particular solutions represent the steady-state response of the circuit.</p> Signup and view all the answers

Explain the condition of symmetry in Y parameters.

<p>Y parameters are symmetric when Y12=Y21.</p> Signup and view all the answers

Explain Z parameters in detail.

<p>Z parameters represent the impedance characteristics of a two-port network. Z11 is the impedance seen at port 1 when port 2 is open-circuited. Z22 is the impedance seen at port 2 when port 1 is open-circuited. Z12 is the transfer impedance from port 2 to port 1, and Z21 is the transfer impedance from port 1 to port 2.</p> Signup and view all the answers

What is parallel resonance?

<p>It occurs in a circuit with a parallel combination of inductor and capacitor. At resonance, the impedance of the circuit is maximum, resulting in a current minimum.</p> Signup and view all the answers

What are the parameters related to filter?

<p>The frequency response, the cut-off frequency, and the pass band.</p> Signup and view all the answers

Explain low pass filter in detail.

<p>Low pass filters allow signals below a specific cut-off frequency to pass through while attenuating signals above that frequency. They can be implemented using passive components like resistors, capacitors, and inductors.</p> Signup and view all the answers

Study Notes

Winter Examination - 2022-23

  • Course: B. Tech
  • Branch: E&I
  • Semester: 3
  • Subject: BTEIC_302 & NETWORK THEORY
  • Max Marks: 60
  • Date: 11.03.23
  • Duration: 3 Hrs

Instructions to Students

  • All questions are compulsory.
  • Question level/course outcome (CO) is indicated in parentheses.
  • Non-programmable scientific calculators are allowed.
  • Assume reasonable data as needed and clearly state assumptions.

Question 1 - Solve Any Two

  • A) Define:
    • Non-Linear Network
    • Passive Network
    • Distributed Network
  • B) Explain: Energy source classification
  • C) Explain: Node analysis in detail, including an example.

Question 2 - Solve Any Two

  • A) Explain: Maximum power transfer theorem with an example
  • B) Discuss: Obtaining delta network impedances from a star network.
  • C) State and Prove: Superposition theorem

Question 3 - Solve Any Two

  • A) List: Properties of Laplace transform
  • B) Explain: Transient and steady-state response for RC circuit with unit ramp and impulse inputs
  • C) Discuss: Significance of general and particular solutions

Question 4 - Solve Any Two

  • A) Explain: Symmetry conditions in Y parameters
  • B) Explain: Z parameters in detail
  • C) Obtain: Laplace transform of unit step and unit ramp signals

Question 5 - Solve Any Two

  • A) Explain: Parallel resonance in detail
  • B) Explain: Filter parameters including frequency response, cut-off frequency, and pass band
  • C) Explain: Low-pass filter in detail

Additional Examination Information (from subsequent pages)

  • Course: B. Tech

  • Branch: Electrical Engineering and Allied Branches

  • Subject: Network Theory

  • Date: 12/08/2022

  • Semester: IV

  • Duration: 3.45 Hrs. (or 3 Hrs, depending on the exam)

  • Additional Instructions are consistently listed: Compulsory questions, clear mention of expected answers, use of scientific calculators, and data assumption as required

  • Specific questions topics (e.g., KVL, KCL, Thevenin's theorem, short circuits, open circuits, linear/nonlinear elements, unilateral/bilateral elements, energy source types, symmetry/reciprocity conditions of Z-parameters) are included.

  • Various problem-solving examples/circuits are also referenced.

  • Exam format consistently lists sections for solving problems or specific tasks. These include finding equivalent resistances, analyzing circuits, explaining different network theorems, calculating current given circuits, understanding concepts of filters.

  • Frequency response, bandwidth calculation, resonance, and different circuit types (RC, RL, RLC circuits) are covered.

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Description

Test your knowledge on Network Theory as part of the B. Tech E&I curriculum for Semester 3. This quiz includes various topics such as non-linear networks, maximum power transfer theorem, and Laplace transforms. Prepare to solve multiple theoretical and practical problems to demonstrate your understanding.

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