Lecture Notes & Question papers On E.M.T.L(ECE,JNTUA R15)



(15A04403) ELECTROMAGNETIC THEORY & TRANSMISSION LINES


Learning Outcomes:

This course provides the foundational education in static electromagnetic fields, and time varying electromagnetic waves. Through lecture, and out-of-class assignments, students are provided learning experiences that enable them to:
  • Analyze and solve the problems of electric and magnetic fields that vary with three dimensional spatial co-ordinates as well as with time.
  • Become proficient with analytical skills for understanding propagation of electromagnetic waves in different media.
  • Understand the concept of transmission lines & their applications.
  • Develop technical & writing skills important for effective communication.
  • Acquire team-work skills for working effectively in groups.
Syllabus:

UNIT-I
Electrostatics: Review of Vector algebra, Co-ordinate systems & transformation, Vector calculus, Coulomb’s Law, Electric Field Intensity – Fields due to Different Charge Distributions, Electric Flux Density, Gauss Law and Applications, Electric Potential, Relations Between E and V, Maxwell’s Two Equations for Electrostatic Fields, Electric dipole, Energy Density, Convection and Conduction Currents, Dielectric Constant, Isotropic and Homogeneous Dielectrics, Continuity Equation, Relaxation Time, Poisson’s and Laplace’s Equations, Capacitance – Parallel Plate, Coaxial, Spherical Capacitors, Illustrative Problems.

UNIT-II
Magnetostatics: Biot-Savart Law, Ampere’s Circuital Law and Applications, Magnetic Flux Density, Maxwell’s Two Equations for Magnetostatic Fields, Magnetic Scalar and Vector Potentials, Forces due to Magnetic Fields, Magnetic torque and moment, Magnetic dipole,Inductances and Magnetic Energy, Illustrative Problems.

UNIT-III
Maxwell’s Equations ( for Time Varying Fields): Faraday’s Law and Transformer e.m.f, Inconsistency of Ampere’s Law and Displacement Current Density, Maxwell’s Equations in Different Final Forms and Word Statements. Boundary Conditions of Electromagnetic fields: Dielectric-Dielectric and Dielectric-Conductor Interfaces, Illustrative Problems.

UNIT-IV
EM Wave Characteristics: Wave Equations for Conducting and Perfect Dielectric Media, Uniform Plane Waves – Definition, All Relations between E & H, Sinusoidal Variations, Wave Propagation in Lossless and Conducting Media, Conductors & Dielectrics –Characterization, Wave Propagation in Good Conductors and Good Dielectrics, Polarization,Reflection and Refraction of Plane Waves – Normal and Oblique Incidences, for both Perfect Conductor and Perfect Dielectrics, Brewster Angle, Critical Angle and Total Internal Reflection, Surface Impedance, Poynting Vector, and Poynting Theorem –Applications, Power Loss in a Plane Conductor, Illustrative Problems.

UNIT-V
Transmission Lines: Types, Transmission line parameters (Primary and Secondary),Transmission line equations, Input impedance, Standing wave ratio & power, Smith chart & its applications, Applications of transmission lines of various lengths, Micro-strip transmission lines – input impedance, Illustrative Problems.

Study Material's For E.M.T.L
Lecture Notes for EMTL On 5 Units(JNTUA Notes): Download
Text Book- Electromagnetic Waves & Transmission Lines: Download

Previous Question Papers
May/June 2015-Regular: Download
Jan 2016-Supply: Download
May/June 2016-Supply: Download
Dec 2016-Supply: Download
May/June 2017-Regular(R15): Download
May/June 2017-Supply(R13): Download

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