electromagnetics

Module 1

syllabus

Introduction to Electromagnetic Theory. Review of vector calculus- curl, divergence gradient Rectangular, cylindrical and spherical coordinate systems. Expression of curl divergence and Laplacian in cartesian , cylindrical and spherical coordinate system. Electric field and magnetic field.Review of Coulomb's law, Gauss law and Amperes current law. Poisson and Laplace equations, Determination of E and V using Laplace equation.

Video Lectures

Introduction to Electromagnetics | Electromagnetics - Module 1 | Lecture 1

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Introduction to Electromagnetics & EM waves

Vector calculus | Electromagnetics - Module 1 | Lecture 2

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Review of Vector calculus

Scalar & Vector, Unit Vector, Position Vector, Distance Vector

Vector addition & subtraction | Electromagnetics - Module 1 | Lecture 3

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Vector addition & subtraction

Vector multiplication | Dot & Cross product | Electromagnetics - Module 1 | Lecture 4

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Vector multiplication

Scalar product or dot product

Vector product or cross product

Introduction to Divergence & Curl | Electromagnetics - Module 1 | Lecture 5

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Introduction to Divergence & Curl

Introduction to coordinate systems | cartesian, cylindrical, spherical | EM - Module 1 | Lecture 6

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Introduction to coordinate systems

Cartesian coordinate system

Cylindrical coordinate system

Spherical coordinate system

Relationship between cartesian and cylindrical coordinate system | EM - Module 1 | Lecture 7

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Relationship between cartesian and cylindrical coordinate system

Relationship between cartesian and spherical coordinate system | EM - Module 1 | Lecture 8

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Relationship between cartesian and spherical coordinate system

Differential Length, area & volume | vector calculus | EM - Module 1 | Lecture 9

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Vector Calculus

Differential Length, Area & volume

Cartesian system, Cylindrical system, Spherical system

Line, Surface & volume Integral | EM - Module 1 | Lecture 10

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Line integral

Surface integral

Volume integral

Line, Surface & volume Integral | EM - Module 1 | Lecture 10

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Line integral

Surface integral

Volume integral

DEL Operator | Gradient of a Scalar | EM - Module 1 | Lecture 11

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DEL Operator

Gradient of a scalar

Divergence of a vector | EM - Module 1 | Lecture 12

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Divergence of a vector and its proof

Divergence theorem | EM - Module 1 | Lecture 13

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Divergence theorem

CURL of a vector | EM - Module 1 | Lecture 14

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Curl of a vector and its proof

Stoke's Theorem | EM - Module 1 | Lecture 15

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Stoke's theorem and its proof

Laplacian of a vector & scalar | EM - Module 1 | Lecture 16

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Laplacian of a vector and scalar

Electrostatics & Coulomb's Law | EM - Module 1 | Lecture 17

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Introduction to electrostatics

Coulomb's law expression and different representations

Electric field Intensity (E) & Electric flux density (D) | EM - Module 1 | Lecture 18

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Introduction Electric field intensity (E)

Electric field due to continuous charge distribution

line charge, surface charge & volume charge distribution

Electric flux density (D)

Gauss's Law & Ampere's Circuit Law | EM - Module 1 | Lecture 19

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Gauss's Law

Deriving First Maxwell's equation from Gausses law

Ampere's Circuit Law

Deriving third Maxwell's equation from Ampere's law

Potential difference (V) | Relationship between E & V | EM - Module 1 | Lecture 20

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Potential difference (V)

Relationship between electric field intensity (E) & potential difference (V)

Poisson's & Laplace Equation | EM - Module 1 | Lecture 21

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Poisson's & Laplace equations

Applications

Derivation of Coulomb's law from Gauss's Law | EM - Module 1 | Lecture 22

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derivation of Coulomb's law from Gauss's Law

Applications of Gauss's Law | EM - Module 1 | Lecture 23

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Applications of Gauss's Law

1. Point charge

2. Infinite Line charge distribution

3. Infinite surface charge distribution

4. Uniformly charged sphere

Applications of Gauss's Law | EM - Module 1 | Lecture 23

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Applications of Gauss's Law

1. Point charge

2. Infinite Line charge distribution

3. Infinite surface charge distribution

4. Uniformly charged sphere

Proof - Divergence of Curl of A Vector | EM - Module 1 | Lecture 24

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Show that divergence of the curl of any vector field is zero

Show that curl grad F and div curl F are identically zero.

Problem & Solution - Finding Divergence & Curl of a vector | EM - Module 1 | Lecture 25

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Q) Find the divergence and curl of a given vector

Problem & Solution - Finding Divergence & Curl of a vector -cylindrical | EM - Module 1 | Lecture 26

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Q) Find the divergence and curl of a given vector

Cylindrical coordinate system - vector

Pro & Sol - Finding Laplacian of a scalar(Cartesian & Cylindrical) | EM - Module 1 | Lecture 27

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Q) Finding the Laplacian of the scalar field

1) cartesian coordinate system

2) Cylindrical coordinate system

Problem & Solution-Calculation of E from spherical charge distribution | EM - Module 1 | Lecture 28

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Q) A charge distribution with spherical symmetry has a rho value given, determine E everywhere

Problem & Solution-Calculation of E from spherical charge distribution | EM - Module 1 | Lecture 29

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Q) A spherical volume charge distribution is given by a rho value, Find the electrical field intensity E; 1) Inside and 2) outside the charge distribution