MA2261 - ELECTROMAGNETIC FIELDS |
UNIT ISTATIC ELECTRIC FIELDS |
Introduction to Co-ordinate System – Rectangular – Cylindrical and Spherical Coordinate
System – Introduction to line, Surface and Volume Integrals – Definition of Curl,
Divergence and Gradient – Meaning of Stokes 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 II 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 IIIELECTRIC AND MAGNETIC FIELDS IN MATERIALS |
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 IVTIME 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 VELECTROMAGNETIC 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. |
Text Book |
1. W H.Hayt & J A Buck : “Engineering Electromagnetics” TATA McGraw-Hill, 7th
Edition 2007 (Unit I,II,III ).
2. E.C. Jordan & K.G. Balmain “Electromagnetic Waves and Radiating Systems.”
Pearson Education/PHI 4nd edition 2006. (Unit IV, V). |
References |
1. Matthew N.O.Sadiku: “Elements of Engineering Electromagnetics” Oxford
University Press, 4th edition, 2007
2. Narayana Rao, N : “Elements of Engineering Electromagnetics” 6th edition,
Pearson Education, New Delhi, 2006.
3. Ramo, Whinnery and Van Duzer: “Fields and Waves in Communications
Electronics” John Wiley & Sons ,3rd edition 2003.
4. David K.Cheng: “Field and Wave Electromagnetics - Second Edition-Pearson
Edition, 2004.
5. G.S.N. Raju, Electromagnetic Field Theory & Transmission Lines, Pearson
Education, 2006 |