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Introduction to Electrical Circuits Basic concepts of passive elements of R, L, C and their V-I relations, Sources (dependent and independent) – Kirchhoff’s laws, Network reduction techniques (Series, Parallel, Series-parallel, Star-to-delta and delta-tostar transformation). Source transformation technique, Nodal analysis and mesh analysis to D.C networks with dependent and independent voltage and current sources.
Magnetic CircuitS Basic definition of MMF, Flux and reluctance, 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.
Single Phase A.C systems Periodic waveforms (determination of r.m.s, average value and form factor), Concept of phasor, Phase angle and phase difference – Waveforms and phasor diagrams for lagging, Leading networks, Complex and polar forms of representations, Node and mesh analysis. Steady state analysis of R, L and C circuits, Power factor and its significance, Real, Reactive power and apparent power, Waveform of instantaneous power and complex power.
Resonance - Locus Diagrams Series and parallel resonance, Selectivety, bandwidth and Quality factor, Locus diagram - RL, RC, RLC with R, L and C variables.
Network theorems (D.C and A.C Excitations) Superposition theorem, Thevenin’s theorem, Norton’s theorem, Maximum power transfer theorem, Reciprocity theorem, Millman’s theorem and compensation theorem.
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