ECA-2(Electrical Circuit Analysis-2), 2-1 SEMESTER Previous year Question paper, R23 regulation

 

ECA 2-1 SEMESTER Previous Year Question Paper R23 Regulation 

  Hi, here we have the ECA-2 2-1 SEMESTER PYQ (Previous Year Question Paper). The 2-1 SEMESTER exam mainly focuses on five units:

➡️ Analysis of Three Phase Balanced and Unbalanced Circuits
➡️ Laplace Transforms and Transient Analysis
➡️ Network Parameters
➡️ Analysis of Electric Circuits with Periodic Excitation
➡️ Network Topology and Filters

Now, let's first look at the concepts covered in each unit.

    UNIT– I

    Analysis of three phase balanced circuits:

    Phase sequence, star and delta connection of sources and loads, relation between line and phase            

quantities, analysis of balanced three phase circuits, measurement of active and reactive power.

    Analysis of three phase unbalanced circuits:

    Loop method, Star-Delta transformation technique, two-wattmeter method for measurement of             

three phase power.

    UNIT–II

    Laplace transforms – Definition and Laplace transforms of standard functions– Shifting theorem –   

 Transforms of derivatives and integrals, Inverse Laplace transforms and applications.

    Transient Analysis: Transient response of R-L, R-C and R-L-C circuits (Series and parallel               

 combinations) for D.C. and sinusoidal excitations – Initial conditions 

UNIT–III

Network Parameters:

Impedance parameters, Admittance parameters, Hybrid parameters, Transmission (ABCD)

parameters, conversion of Parameters from one form to other, Conditions for Reciprocity and

Symmetry, 

UNIT–IV

Analysis of Electric Circuits with Periodic Excitation: Fourier series and evaluation of Fourier coefficients, Trigonometric and complex Fourier series

for periodic waveforms, Application to Electrical Systems 

UNIT– V

Network Topology: Definitions of branch, node, tree, planar, non-planar graph, incidence matrix,

basic tie set schedule, basic cut set schedule

Filters: Classification of filters-Low pass, High pass, Band pass and Band Elimination filters,

Constant-k filters -Low pass and High Pass, Design of Filters

📜Mid-1 Paper Overview

Part-A (20 Marks):

It contains 10 short questions, each carrying 2 marks.

Part-B (50 Marks):

It contains 5 sets of questions. Each set has 4 questions, out of which 2 questions must be answered. Each set carries 10 marks.