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

SYLLABUS

Semester V - Paper V - Electricity and Magnetism

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

Unit I

Electrostatics:

Coulomb's law - electric intensity and electric potential - electrical images - electric intensity and potential due to an earthed conducting sphere applying the principle of electrical images - electric dipole - potential and intensity due to a dipole - capacity - capacitance of a spherical and cylindrical capacitor - energy of a charged capacitor - loss of energy due to sharing of charges.

Unit II

Chemical effects of Electric Current:

Faraday's laws of Electrolysis - ionic velocities and mobilities. Calculation and experimental determination of ionic mobilities - transport number. Thermoelectricity - Peltier coefficient - Thomson coefficient - application of thermodynamics to a thermocouple and connected relations - thermoelectric diagram and uses.

Unit III

DC Circuits:

Growth and decay of current in a circuit containing resistance and inductance. Growth and decay of charge in a circuit containing resistance and capacitor - growth and decay of charge in a LCR circuit - condition for the discharge to be oscillatory - frequency of oscillation - network analysis - Thevenin and Norton's Theorems.

Unit IV

Alternating Currents:

Peak, average and RMS values of AC voltage and current - power factor and current values in an AC circuit containing LCR (reactance and impedance) series and parallel resonant circuits - power in an AC circuit - wattless current - choke coil - construction and working of transformers - energy losses - AC motors - single phase, three phase - star and delta connections - electric fuses - circuit brakers.

Unit V

Magnetic Properties of Materials:

Susceptibility - permeability - intensity of magnetization and the relation B = μ₀ (H+L_m ) - I-H and B-H curves for a magnetic material using magnetometer method and ballistic galvanometer method. Terrestrial magnetism - magnetic elements - dip circle - Kew magnetometer - causes of earth's magnetic field.

Books for Study:

1. Electricity & Magnetism by M. Narayanamurthy & N. Nagarathnam, National publishing Company, revised edition)
2. Electricity & Magnetism by K. K. Tewari, S.Chand & Co., 3^rd Edition, 2001

Books for Reference

1. Electricity & Magnetism by Brij Lal & Subramaniam.

2. Electricity & Magnetism by D.Chattopadhyay, Books & allied Publishers.

3. Text book of applied electronics by R.S. Sedha S.Chand & co, New Delhi, 2002.

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

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

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

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

8. Basic Electronics, Edition by B. Grob, McGraw- Hill, NY, 1989.