# Electromagnetics for SPPU 15 Course (TE - I - E&Tc/Elex. - 304183) (OLD EDITION)

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Unit I : Electrostatics - I Sources and effects of electromagnetic fields - Coordinate Systems - Vector fields Gradient, Divergence, Curl - theorems and applications - Coulomb‘s Law - Electric field intensity - Field due to discrete and continuous charges - Gauss‘s law and applications. Electric potential -Concept of Uniform and Non-Uniform field, Utilization factor. Unit II : Electrostatics - II Electric field in free space, conductors, dielectrics - Dielectric polarization - Dielectric strength - Electric field in multiple dielectrics - Boundary conditions (dielectric-dielectric, conductor - dielectric), significance of Poisson‘s and Laplace‘s equations, Capacitance, Energy density, Applications. Unit III : Magnetostatics Lorentz force, magnetic field intensity (H) - Biot-Savart‘s Law - Ampere‘s Circuit Law - H due to straight conductors, circular loop, infinite sheet of current, Magnetic flux density (B) - B in free space, conductor, magnetic materials, Boundary conditions, scalar and vector potential, Poisson‘s Equation, Magnetic force, Torque, Inductance, Energy density, Applications. Unit IV : Electrodynamic Fields Faraday‘s law, Translational and motional emf, Displacement current, Time varying Maxwell‘s equations - point form,integral form, Power and Poynting theorem, concept of Retarded magnetic vector potential, Applications. Unit V : Transmission Lines Line parameters, skin effect, general solution, physical significance of the equations, wavelength, velocity of propagation, the distortion less line, Reflection on a line not terminated in Z0, reflection coefficient, open and short circuited lines, reflection factor and reflection loss, standing waves; nodes; standing wave ratio, Input impedance of dissipation less line, Input impedance of open- and short-circuited lines, Power and impedance measurement on lines, Reflection losses on the unmatched Load, Problems solving using Smith chart. Unit VI : Uniform Plane Waves Maxwell‘s equation using phasor notations, Electromagnetic wave equations (Helmholtz equation), Relation between E and H, depth of penetration, concept of polarization, Reflection by perfect conductor-normal incidence, reflection by perfect dielectric- normal incidence, snell‘s law.

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