ELECTROMAGNETIC FIELDS

230 161

First Edition : March 2019

Second Edition : September 2022

ISBN :978-93-86590-86-2

UNIT I : ELECTROSTATICS – I

Sources and effects of electromagnetic fields – Coordinate Systems – Vector fields –Gradient,
Divergence, Curl – theorems and applications – Coulomb’s Law – Electric field intensity – Field due to
discrete and continuous charges – Gauss’s law and applications.

UNIT II : ELECTROSTATICS – II 

Electric potential – Electric field and equipotential plots, Uniform and Non-Uniform field, Utilization
factor – Electric field in free space, conductors, dielectrics – Dielectric polarization –Dielectric strength –
Electric field in multiple dielectrics – Boundary conditions, Poisson’s and Laplace’s equations,
Capacitance, Energy density, Applications.

UNIT III : MAGNETOSTATICS -III

Lorentz force, magnetic field intensity (H) – Biot–Savart’s Law – Ampere’s Circuit Law – H due to
straight conductors, circular loop, infinite sheet of current, Magnetic flux density (B) – B in free space,
conductor, magnetic materials – Magnetization, Magnetic field in multiple media –Boundary
conditions, scalar and vector potential, Poisson’s Equation, Magnetic force, Torque, Inductance,
Energy density, Applications.

UNIT  IV: ELECTRODYNAMIC FIELDS

Magnetic Circuits – Faraday’s law – Transformer and motional EMF – Displacement current -Maxwell’s
equations (differential and integral form) – Relation between field theory and circuit theory –
Applications.

UNIT  V:  ELECTROMAGNETIC WAVES  

Electromagnetic wave generation and equations – Wave parameters; velocity, intrinsic impedance,
propagation constant – Waves in free space, lossy and lossless dielectrics, conductors- skin depth –
Poynting vector – Plane wave reflection and refraction.

 

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230 161