EE 1201 ELECTROMAGNETIC THEORY 3 1 0 100

AIM

To expose the students to the fundamentals of electromagnetic fields and their applications in Electrical Engineering .

OBJECTIVES

To impart knowledge on

i. Concepts of electrostatics, electrical potential, energy density and their applications.

ii. Concepts of magnetostatics, magnetic flux density, scalar and vector potential and its applications.

iii. Faraday’s laws, induced emf and their applications.

iv. Concepts of electromagnetic waves and

Poynting vector.

v. Field modeling and computation with relevant software.

1. INTRODUCTION 8

Sources and effects of electromagnetic fields – Vector fields – Different co-ordinate systems - Divergence theorem – Stoke’s theorem.

2. ELECTROSTATICS 10

Coulomb’s Law – Electric field intensity – Field due to point and continuous charges – Gauss’s law and application – Electrical potential – Electric field and equipotential plots – Electric field in free space, conductors, dielectric – Dielectric polarization, Electric field in multiple dielectrics – boundary conditions, Poisson’s and Laplace’s equations – Capacitance-energy density – Dielectric strength.

3. MAGNETOSTATICS 9

Lorentz Law of force, magnetic field intensity – Biot–savart Law - Ampere’s Law – Magnetic field 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 – Magnetic force – Torque – Inductance – Energy density – Magnetic circuits.

4. ELECTRODYNAMIC FIELDS 8

Faraday’s laws, induced emf – Transformer and motional EMF, Maxwell’s equations (differential and integral forms) – Displacement current – Relation between field theory and circuit theory.

5. ELECTROMAGNETIC WAVES 9

Generation – Electro Magnetic Wave 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.

L = 45 T = 15 Total = 60

TEXT BOOKS

1. John.D.Kraus, ‘Electromagnetics’, McGraw Hill book Co., New York, Fourth Edition, 1991.

2. William .H.Hayt, ‘Engineering Electromagnetics’, Tata McGraw Hill edition, 2001.

REFERENCE BOOKS

1. Joseph. A.Edminister, ‘Theory and Problems of Electromagnetics’, Second edition, Schaum Series, Tata McGraw Hill, 1993.

2. I.J. Nagrath, D.P. Kothari, ‘Electric Machines’, Tata McGraw Hill Publishing Co Ltd, Second Edition, 1997.

3. Kraus and Fleish, ‘Electromagnetics with Applications’, McGraw Hill International Editions, Fifth Edition, 1999.

4. Sadiku, ‘Elements of Electromagnetics’, Second edition, Oxford University Press, 1995.

AIM

To expose the students to the fundamentals of electromagnetic fields and their applications in Electrical Engineering .

OBJECTIVES

To impart knowledge on

i. Concepts of electrostatics, electrical potential, energy density and their applications.

ii. Concepts of magnetostatics, magnetic flux density, scalar and vector potential and its applications.

iii. Faraday’s laws, induced emf and their applications.

iv. Concepts of electromagnetic waves and

Poynting vector.

v. Field modeling and computation with relevant software.

1. INTRODUCTION 8

Sources and effects of electromagnetic fields – Vector fields – Different co-ordinate systems - Divergence theorem – Stoke’s theorem.

2. ELECTROSTATICS 10

Coulomb’s Law – Electric field intensity – Field due to point and continuous charges – Gauss’s law and application – Electrical potential – Electric field and equipotential plots – Electric field in free space, conductors, dielectric – Dielectric polarization, Electric field in multiple dielectrics – boundary conditions, Poisson’s and Laplace’s equations – Capacitance-energy density – Dielectric strength.

3. MAGNETOSTATICS 9

Lorentz Law of force, magnetic field intensity – Biot–savart Law - Ampere’s Law – Magnetic field 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 – Magnetic force – Torque – Inductance – Energy density – Magnetic circuits.

4. ELECTRODYNAMIC FIELDS 8

Faraday’s laws, induced emf – Transformer and motional EMF, Maxwell’s equations (differential and integral forms) – Displacement current – Relation between field theory and circuit theory.

5. ELECTROMAGNETIC WAVES 9

Generation – Electro Magnetic Wave 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.

L = 45 T = 15 Total = 60

TEXT BOOKS

1. John.D.Kraus, ‘Electromagnetics’, McGraw Hill book Co., New York, Fourth Edition, 1991.

2. William .H.Hayt, ‘Engineering Electromagnetics’, Tata McGraw Hill edition, 2001.

REFERENCE BOOKS

1. Joseph. A.Edminister, ‘Theory and Problems of Electromagnetics’, Second edition, Schaum Series, Tata McGraw Hill, 1993.

2. I.J. Nagrath, D.P. Kothari, ‘Electric Machines’, Tata McGraw Hill Publishing Co Ltd, Second Edition, 1997.

3. Kraus and Fleish, ‘Electromagnetics with Applications’, McGraw Hill International Editions, Fifth Edition, 1999.

4. Sadiku, ‘Elements of Electromagnetics’, Second edition, Oxford University Press, 1995.

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