B.Sc. Semester Course Physics Syallbus Course No. Periods/Week ...

PHB401 Electricity and Magnetism II 3 Period/week HPVS
Unit 1 : ELECTRICAL CURRENTS AND CIRCUITS
Steady current, Current density J, non-steady currents and continuity equation, Varying currents:
rise and decay of currents in LR and CR circuits, decay constants, AC circuit problems: complex
impedance and reactance, phasor algebra, frequency response - series and parallel circuits,
resonance, Q factor, Power dissipation and power factor
Unit 2 : ELECTROSTATIC FIELDS IN MATTER
Dielectrics - Polarization and Induced Dipoles, Bound charges. The field of a polarized object,
Bound charges and their physical interpretations, Field inside a dielectric. The Gauss’s law in the
presence of dielectrics. The Electric Displacement Vector D. Susceptibility, permittivity, dielectric
constant. Energy in Dielectric systems, Forces on Dielectrics, Clausius-Mossotti equation, Polar
molecules. The Langevin formula.
Unit 3 : MAGNETIC FIELDS IN MATTER
Magnetization - Diamagnetism, Paramagnetism, Ferromagnetism, The field of a magnetized object
- Bound currents and their physical interpretation, The magnetic field inside matter. Ampere’s law
in magnetized medium, the magnetic field intensity vector H, Magnetic Susceptibility and
Permeability. Ferromagnetism - energy loss in Hysteresis and B-H curve.
REFERENCES :
1. “Introduction to Electrodynamics” by D.J. Griffiths (Prentice Hall of India Private Limited)
2. “Electricity and Magnetism” by A.S. Mahajan and A.A. Rangwala (Tata McGraw Hill)
3. “Electricity and Magnetism” Berkeley Physics Course ed. E.M. Purcell
4. “Physics”, Vol. 2 Halliday and Resnick