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Electromagnetics

courses


 with Sumathi Elumalai






short description:
Electrostatics , Magnetostatics , Time Varying fields , Electromagnetic waves
 
long description:

Electromagnetics

UNIT - 1 : STATIC ELECTRIC FIELDS
Introduction to Co-ordinate System - Rectangular - Cylindrical and Spherical Co-ordinate System - Introduction to line, Surface and Volume Integrals - Definition of Curl, Divergence and Gradient - Meaning of Strokes theorem and Divergence theorem Coulomb's Law in Vector Form - Definition of Electric Field Intensity - Principle of Superposition - Electric Field due to discrete charges - Electric field due to continuous charge distribution - Electric Field due to charges distributed uniformly on an infinite and finite line - Electric Field on the axis of a uniformly charged circular disc - Electric Field due to an infinite uniformly charged sheet.Electric Scalar Potential - Relationship between potential and electric field - Potential due to infinite uniformly charged line - Potential due to electrical dipole - Electric Flux Density - Gauss Law - Proof of Gauss Law - Applications.

UNIT - 2 : STATIC MAGNETIC FIELD
The Biot-Savart Law in vector form - Magnetic Field intensity due to a finite and infinite wire carrying a current I - Magnetic field intensity on the axis of a circular and rectangular loop carrying a current I - Ampere's circuital law and simple applications.Magnetic flux density - The Lorentz force equation for a moving charge and applications - Force on a wire carrying a current I placed in a magnetic field - Torque on a loop carrying a current I - Magnetic moment - Magnetic Vector Potential.

UNIT - 3 : ELECTRIC AND MAGNETIC FIELDS IN MATERIALS
Poisson's and Laplace's equation - Electric Polarization-Nature of dielectric materials- Definition of Capacitance - Capacitance of various geometries using Laplace's equation - Electrostatic energy and energy density - Boundary conditions for electric fields - Electric current - Current density - point form of ohm's law - continuity equation for current.Definition of Inductance - Inductance of loops and solenoids - Definition of mutual inductance - simple examples. Energy density in magnetic fields - Nature of magnetic materials - magnetization and permeability - magnetic boundary conditions.

UNIT - 4 : TIME VARYING ELECTRIC AND MAGNETIC FIELDS
Faraday's law - Maxwell's Second Equation in integral form from Faraday's Law - Equation expressed in point form. Displacement current - Ampere's circuital law in integral form - Modified form of Ampere's circuital law as Maxwell's first equation in integral form - Equation expressed in point form. Maxwell's four equations in integral form and differential form. Poynting Vector and the flow of power - Power flow in a co-axial cable - Instantaneous Average and Complex Poynting Vector.

UNIT - 5 : ELECTROMAGNETIC WAVES
Derivation of Wave Equation - Uniform Plane Waves - Maxwell's equation in Phasor form - Wave equation in Phasor form - Plane waves in free space and in a homogenous material. Wave equation for a conducting medium - Plane waves in lossy dielectrics - Propagation in good conductors - Skin effect. Linear, Elliptical and circular polarization - Reflection of Plane Wave from a conductor - normal incidence - Reflection of Plane Waves by a perfect dielectric - normal and oblique incidence. Dependence on Polarization. Brewster angle.

 
level of difficulty:
all welcome
 
minimum class size:
1
 
availability:
I will be available on sundays to handle the classes.
 
fee comments:
10 $ per hour
 
 session structure




title:


type:

description:


duration:


Electromagnetics

live session

Electrostatics , Magnetostatics , Time Varying fields , Electromagnetic waves


1h 0m




total duration: 1h 0m over 1 session(s)
comments: n.a.
 

discussion forums: 1
 










languages: English
duration: 1h 0m
fee: 10US$  (100lp)
payment: on satisfaction
delivery method: live online

Quick Help




India


Sumathi Elumalai



description of :
I have been teaching Electromagnetics for Engineering college students and post graduates in physics for past decade.
 
Teacher's qualifications:
I am a post graduate in physics and at present a full time researcher and doing my Ph.D in Physics
 
's preferred teaching style:
My approach will be in explaining the basic concepts of electromagnetic step by step by simple methods and examples so that the student will get a grasp of the subject very easily.
 



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