UNIVERSITY OF MADRAS
B.Sc. DEGREE COURSE IN Physics
SEMESTER SYSTEM WITH CREDITS
(Effective from the Academic Year 2003-2004)

SYLLABUS

Semester VI - Paper IX - Electromagnetism

Duration of Examination: 3 hrs
Maximum Marks: 100
Credits: 4

Unit I

Magnetic effect of an electric Current:

Magnetic field around a current carrying conductor. Biot and Savart's law - Magnetic field intensity at a point on the axis of a circular coil carrying current - magnetic field intensity due to a solenoid carrying current - effect of iron core in a solenoid - Helmholtz galvanometer - moving coil ballistic galvanometer - theory - damping correction. Determination of the absolute capacity of a condenser using B.G.

Unit II

Electromagnetic Induction:

Faraday's experiments on electromagnetism - Faraday's laws of Electromagnetic Induction - Lenz's law - Deduction of Faraday's law from Lorentz force - vector potential. Eddy currents - inductors and inductance - determination of self inductance of a coil using Anderson method - mutual inductance - experimental determination of absolute mutual inductance - coeficient of coupling.

Unit III

Applications of Electromagnetic induction:

Earth inductor - uses of earth inductor - measurement of horizontal component of the earth's magnetic field - measurement of vertical component of earth's magnetic field- calibration of B.G. - measurement of intense magnetic field using search coil and BG - induction coil and its uses.

Unit IV

Maxwell's Equations and Electromagnetic Theory:

Basic equations - types of currents - vacuum displacement current - Maxwell's equations - Maxwell's equations in free space - electromagnetic waves in free space - energy density of e.m wave - Poynting's theorem - energy per unit volume.

Unit V

Electromagnetic waves in matter

Propagation in linear media - Reflection and Transmission at normal incidence and oblique incidence- Fresnel's equations - Brewster angle - wave guides - TE waves in rectangular wave guide

Books for Study:

Books of Reference:

1. Electromagnetic Theory & Electrodynamics by Sathya prakash.

2. Introduction to Electrodynamics by D.J.Griffiths 3^rd Edition, PHI, New Delhi, 2002.

3. Fundamentals of Physics, 6^th Edition, by D.Haliiday, R.Resnick and J.Walker, Wiley, NY, 2001.

4. Physics, 4^th Edition, Vols I, II & II Extended by D.Halliday, R.Resnick and K.S.Krane, Wiley, NY,.1994.

5. CRC Handbook of Physics & Chemistry, 80^th Ed., CRS Press, NY, 1999.

6. The Feynman Lectures on Physics, Vols. I, II, and III, by R. P. Feynman. R B Leighton and M Sands, Narosa, New Delhi 1998.