4EX6.1-ELECTROMAGNETIC FIELD THEORY |
Units: I-INTRODUCTION: |
Vector Relation in rectangular, cylindrical, spherical and general
curvilinear coordinates system. Concept and physical interpretation of gradient, Divergence
and curl, Green’s & Stoke’s theorems.
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Units: II-ELECTROSTATICS: |
Electric field intensity & flux density. Electric field due to various
charge configurations. The potential functions and displacement vector. Gauss’s law. Poisson’s
and Laplace’s equation and their solution. Uniqueness theorem. Continuity equation.
Capacitance and electrostatics energy. Field determination by method of images. Boundary
conditions. Field mapping and concept of field cells. |
Units: III-MAGNETOSTATICS : |
Magnetic field intensity, flux density & magnetization, Faraday’s
Law, Bio-Savart’s law, Ampere’s law, Magnetic scalar and vector potential, self & mutual
inductance, Energy stored in magnetic field, Boundary conditions, Analogy between electric
and magnetic field, Field mapping and concept of field cells.
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Units: IV-TIME VARYING FIELDS: |
Displacement currents and equation of continuity. Maxwell’s
equations, Uniform plane wave in free space, dielectrics and conductors, skin effect sinusoidal
time variations, reflection & refraction of Uniform Plane Wave, standing wave ratio. Pointing
vector and power considerations.
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Units: V-RADIATION, EMI AND EMC: |
Retarded Potentials and concepts of radiation, Radiation
from a small current element. Radiation resistance: Introduction to Electromagnetic
Interference and Electromagnetic compatibility, EMI coupling modes, Methods of eliminating
interference, shielding, grounding, conducted EMI, EMI testing: emission testing,
susceptibility testing.
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