Basic Electrical Engg BEE1101 - Veer Surendra Sai ...

DEPARTMENT OF Electrical ENGINEERING Basic Electrical ENGINEERING (4 credit) Course Code: BEE1101 (1ST AND 2ND SEMESTER) SYALLABUS MODULE-I (10 HOURS) DC Networks: Kirchhoff's laws, node and mesh analysis, Delta-star and star-delta transformations. Superposition, Thevenin s and Norton's theorem. Transients in R-L, R-C and R-L-C circuits with DC Excitation. Single Phase AC Circuits: Single phase EMF generation, average and effective values of sinusoids, j operations, complex representation of impedances, phasor diagrams, power factor, power in complex notation, solution of series and parallel circuits. Introduction to resonance in series RLC circuit. Three Phase AC Circuit: Three phase EMF generation, delta and star connection, Line and Phase quantities.

I2 are the mesh currents of two meshes directed in clockwise. Apply KVL to mesh-1, V -I R - I -I R =01 1 1 1 2 3( ) Apply KVL to mesh-2, -I R -V - I -I R =02 2 2 2 1 3( ) When we consider mesh-1, the current I 1 is greater than I 2. So, current through R3 is I 1-I2. Similarly, when we consider mesh-2, the current I2 is greater than I 1.

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