PHYS 2421  Fundamentals of Physics
Course last offered

:

Fall 2011/12

Instructor(s)

:

Shengwang DU, Rolf W LORTZ

No. of credits

:

4

Teaching Pattern
Content
 Electric field due to point charges, dipole, line of charge and disk of charge
 Electric charge in a E field, dipole in a E field
 Electric flux, Gauss’ Law, application to isolated conductors
 Gauss’ Law applied to systems with cylindrical, planar and spherical symmetry
 Electric potential energy and electric potential, equipotential surface, potential due to point charges
 Potential due to electric dipole, a line and a disk of charge, finding E from V, potential energy of a system of point charges, and
 potential due to a charged isolated conductor
 Capacitance, capacitors in series and parallel
 Energy stored in a E field, dielectrics
 Current and current density, resistance and resistivity, Ohm’s law
 Circuits, Kirchhoff’s laws, RC circuits
 Charged particles in a magnetic field, and cross E and B field, Hall effect, circulating and spiral paths of charged particles, mass spectrometer
 Particle accelerators, magnetic force on a currentcarrying wire, magnetic dipole moment
 Magnetic field due to a current, BiotSavart law, force between currentcarrying conductors
 Ampere’s law, solenoid and toroid, current carrying coil as a magnetic dipole
 Faraday’s law of induction, Lenz’s law, induced electric field
 Inductors, self induction, RL circuits, energy stored in a B field, mutual inductance
 EM oscillation, RLC circuits, simple AC circuits
 Series RLC circuit, power in AC circuits, transformers
 Gauss’ law for magnetism, induced B field, displacement current, Maxwell’s equations, earth’s magnetic field
 Microscopic origin of magnetism, dia, para, and ferromagnetism, hysteresis
 EM wave
 Temperature, heat, first law of thermodynamics, heat transfer mechanisms
 Ideal gas law, kinetic theory of gases
 Maxwell’s distribution, specific heat and degrees of freedom, adiabatic process, free expansion
 Entropy and the second law, reversible and irreversible processes, heat engines
Remarks
 Exclusion: PHYS 1413, PHYS 1433, PHYS 2411, PHYS 112 (prior to 200708)
 Prerequisite: AL* Physics/Engineering Science/PHYS 1411
* AL – Advanced Level of Hong Kong Advanced Level Examination
PHYS 2421 will not be offered w.e.f. Spring 2012/13. It can be substituted by PHYS 1114 or PHYS 1154, together with PHYS 1115.
