(PHYSICS) Electricity and Magnetism ( विद्युत एवं चुंबकत्व )

Unit

Topic

No. of Lectures

Unit I

Electric Field and Potential

Coulomb Law, Gauss’ Theory, its Integral and Differential Forms, Line Integral of Electric Field, Electric Field and Potential Due to An Arbitrary Charge Distribution. Electrostatic Energy, Energy Stored in An Electric Field. Electric Field and Potential Due to Long Charged wire, Spherical Shell, Sphere, Disc, Dipole.

10

Unit II

Electric and Magnetic Fields in Matter

Moments of Charge Distributions, Polar and Non-Polar Molecule, Polarization Vector, Electric Displacement Vector, Three Electric Vectors, Dielectric Susceptibility and Permittivity, Polarizability, Clausius-Mossotti Relation Magnetization, Magnetic Susceptibility, Diamagnetic, Paramagnetic and Ferromagnetic Substances, Hysteresis and B-H Curve, Hysteresis Loss.

10

Unit III

Electric Currents (Steady and Varying)

Current Density, Equation of Continuity, Ohm’s Law and Electrical Conductivity, Kirchhoff’s Laws and their Applications, Transient Current, Growth and Decay of D. C. in L - R      and R - C Circuits, Charging and Discharging of a Capacitor Through a Resistance.

10

Unit IV

Magnetostatics

Lorentz Force, Bio-Savert’s Law, Ampere’s Law and Application, Application of Biot-Savert Law, Magnetic Field Due Steady Current in a Long Straight Wire, Coil, Interaction between Two Wires, Field Due a Helmholtz Coil, Solenoid and Current Loop, Magnetic Vector Potential, Energy Stored in Magnetic Field.

10

Unit V

Electromagnetic Induction and Alternating Current

Faraday’s Laws of Induction, Lenz’s Law, Electromotive Force, Measurement of Magnetic Field, Eddy Current, Mutual Inductance, Self-Inductance. Impedance, Admittance and Reactance, R-C, R-L and L-C Circuits with Alternating E.M.F. Source, Series and Parallel L-C-R Circuits, Resonance and Sharpness, Quality Factor, Power in A. C. Circuits, Choke Coil.

10

Unit VI

Maxwell's Equations

Review of Electrostatic and Electromagnetic Equations, their Differential and Integral Forms, Maxwell’s Equations. Displacement Current. Wave Equations. Plane Waves in Dielectric Media. Poynting Theorem and Poynting Vector. Electromagnetic (EM) Energy Density. Physical Concept of Electromagnetic Field Energy Density.

10

Unit

Topic

No. of Lectures

10

10

10

10

10

10