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SYLLABUS

UNIT-I

ELECTROSTATICS Review of vector algebra, Co-ordinate systems and transformation, Vector calculus, Coulomb’s law, Electric field intensity – Fields due to different charge distributions, Electric flux density, Gauss law and applications, Electric potential, Relations between E and V, Maxwell’s two equations for electrostatic fields, Electric dipole, Energy density, Convection and conduction currents, Dielectric constant, Isotropic and homogeneous dielectrics, Continuity equation, Relaxation time, Poisson’s and Laplace’s equations, Capacitance – Parallel plate, Spherical capacitors, Illustrative problems.

UNIT-II

MAGNETOSTATICS Biot-Savart law, Ampere’s circuital law and applications, magnetic flux density, Maxwell’s two equations for magnetostatic fields, magnetic scalar and vector potentials, forces due to magnetic fields, Magnetic torque and moment, Magnetic dipole, Inductances and magnetic energy, Illustrative problems.

UNIT-III

MAXWELL’S EQUATIONS (FOR TIME VARYING FIELDS) Faraday’s law and transformer e.m.f, Inconsistency of ampere’s law and displacement current density, Maxwell’s equations in different final forms and word statements. Boundary conditions of electromagnetic fields: Dielectric – Dielectric and dielectric – Conductor interfaces, Illustrative problems.

UNIT-IV

EM WAVE CHARACTERISTICS Wave equations for conducting and perfect dielectric media, Uniform plane waves - Definition, All relations between E and H, Sinusoidal variations, Wave propagation in lossless and conducting media, Conductors and dielectrics – Characterization, Wave propagation in good conductors and good dielectrics, Polarization, Reflection and refraction of plane waves – Normal and oblique incidences, for both perfect conductor and perfect dielectrics, Brewster angle, Critical angle and total internal reflection, Surface impedance, Poynting vector and poynting theorem – Applications, Power loss in a plane conductor, Illustrative problems.

UNIT-V

TRANSMISSION LINES Types, Transmission line parameters (Primary and secondary), Transmission line equations, input impedance, Standing wave ratio and power, Smith chart and its applications, Applications of transmission lines of various lengths, Micro-strip transmission lines – Input impedance, Illustrative problems.