Electrical Engineering(4th Sem.)
Electromagnetic Fields__________________________________1. Unit-1
2. Unit-2
3. Unit-3
4. Unit-4
5. Unit-5
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Electromagnetic Fields SyllabusUNIT I: Basics of Electromagnetic Fields
Scalars and vectors, vector algebra, the Cartesian, circular cylindrical and spherical coordinate systems, transformations between coordinate systems, Coulomb’s law, electric field intensity, electric field due to several charges, Gauss law and its application, divergence and divergence theorem, Maxwell’s first equation, the vector operator Ñ and divergence theorem. UNIT II: Electrostatics Electric potential, potential at any point due to discrete and distributed charges, principle of superposition potential and field between two coaxial cylinders, potential between two conducting spherical shells, conservative property, potential gradient, electric dipole, current and current density, continuity of current, metallic conductors, conductor properties and boundary conditions for dielectric materials, boundary conditions for perfect dielectric materials, capacitance Poisson and Laplace equation, uniqueness theorem, examples of the solution of Laplace and Poisson’s equations. UNIT III: Magnetostatics The steady state magnetic field, Biot Savart Law, Ampere’s circuital Law, Curl, Stokes theorem, magnetic flux and magnetic flux density, scalar and vector magnetic potentials. UNIT IV: Magnetic Force And Inductance Force on a moving charge, force on a differential current element, force between differential current elements, force and torque on a closed circuit, magnetic materials, magnetization and permeability, magnetic boundary conditions. UNIT V: Time Varying Field And Maxwell’s Equations Modification of Maxwell’s equations under time varying conditions, displacement current, source free wave equation, power flow and energy, sinusoidal time varying field, Helmholtz equation, complex pointing vector, Boundary condition, relation between field theory and current theory. |
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