Syllabus Electromagnetic Field Theory (304182) Credit Examination Scheme : 03 + 01 = 04 In-Sem (Theory) : 30 Marks End-Sem (Theory) : 70 Marks Term Work : 25 Marks Unit I Electrostatics Review of 3D Coordinate Geometry, Vector Calculus, Physical significance of Gradient, Divergence, Curl, Electric field intensity(E), Displacement Flux Density(D), Gauss‘s law, Electric potential(V), Potential Gradient, E/D/V due to uniform sources (point charge, infinite line charge, infinite surface charge), Maxwell Equations for Electrostatics, Current, Current Density, physical interpretation. Application Case Study : Electrostatic Discharge, Cathode Ray Oscilloscope. (Chapter - 1) Unit II Magneto statics Lorentz force, magnetic field intensity (H), Magnetic Flux Density(B), - Biot -Savart‘s Law - Ampere‘s Circuit Law - H due to straight conductors, circular loop, infinite sheet of current, Maxwell Equations for Magneto Statics, physical interpretation. Application Case Study : Lightning, Magnetic Resonance Imaging (MRI). (Chapter - 2) Unit III Boundary Conditions Electric Dipole, Dielectric Polarization, Properties of Conductors, Dielectric Materials, Boundary conditions (dielectric-dielectric, conductor - dielectric), significance and applications of Poisson‘s and Laplace‘s equations - Capacitance, Energy density. Magnetization, magnetic materials, Boundary conditions for Magnetic Fields, Magnetic force, Torque. Application Case Study : RF MEMS, Magnetic Levitation, Electromagnetic Pump. (Chapter - 3) Unit IV Time Varying Electromagnetic Fields : Maxwell Equations Scalar and Vector Magnetic Potential, Poisson’s and Laplace Equations, Faraday‘s law, Translational and motional emf, Displacement current density, Continuity Equation, Time varying Maxwell‘s equations - point form, integral form, Power and Poynting theorem, concept of Retarded magnetic vector potential, Application Case Study : Memristor, Electric Motors, Generators. (Chapter - 4) Unit V 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. Application Case Study : Comparison of Circuit Theory at low frequency and Field theory at High frequencies, Antenna Radiation Mechanism, Propagation of EM energy. (Chapter - 5) Unit VI Transmission Line Theory 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 coefficient and reflection loss, standing waves ; nodes ; standing wave ratio, Input impedance of dissipation less line, Smith Chart and its applications in solving the transmission line parameters. Application Case Study : Coaxial Cable, Twisted Pair, Microwave Waveguides. (Chapter - 6)
