The basic circuit elements, systems of units, ohm’s law, power and energy, simple resistor network. Voltage and current sources, delta/star and star/delta transformation, the superposition theorem. Kirchoff’s laws, the mesh (loop) current method, the node voltage method. Thevenin’s theorem, Norton theorem, mutual conversion of Thevenin’s and Norton equivalent circuits. Millman’s theorem, mixed networks with potential and current sources. Vector algebra, AC fundamentals, rotating vector. AC series circuits, AC parallel circuits. AC series circuits, AC parallel circuits. Power in AC circuit, Poly-phase circuits, balanced three phase, analysis of star/ star and star/delta circuits. Power calculation. Earthing. Applications.