Physics II A - L
Academic Year 2024/2025 - Teacher: IVANO LOMBARDOExpected Learning Outcomes
After having successfully followed the course, students must be able to independently solve a large class of problems related to electromagnetism and optics, and must have learned and internalized the conceptual foundations and the main experimental results related to the historical development of electromagnetism.
Course Structure
Frontal teaching accompanied by numerous exercises
Required Prerequisites
Physics I. It would be better to have a good knowledge of Differential Calculus and Linear Algebra.
Attendance of Lessons
The participation to the lectures is mandatorily requires.
Detailed Course Content
ELECTROSTATICS
1.1 - Electrostatic force.
Electrostatic field.
The composition of matter and the
presence of electrical interactions between its charged constituents. Quantization
and conservation of the electric charge. Insulating and conducting materials.
Electrifying processes. Force between electric charges. Coulomb's law. The
electrostatic field. Calculation of electrostatic fields for discrete and
continuous distributions. The lines of force. Motion of a charge in an
electrostatic field.
1.2 - Electrical work.
Electrostatic potential.
The work of the electric force.
The electrical voltage between two points. The electromotive force of the
electric field. The electrostatic potential. The electrostatic potential
energy. Calculation of the potential and electrostatic potential energy for a
point charge and for discrete and continuous charge distributions. Potential
energy of a system of charges. Motion of a charge in an electrostatic field.
The electrostatic field as a gradient of the potential. Calculation of
electrostatic fields from the potential for continuous charge distributions.
The rotor of the electric field. Equipotential surfaces. Electric field and
potential generated by a dipole. Potential energy of a dipole placed in a field.
1.3 - Gauss's law.
Flux of the electrostatic field
vector. Proof of Gauss's theorem. Applications of Gauss's theorem: spherical
shell, sphere, wire and plane uniformly charged. Gauss law in local form.
1.4 - Conductors. Dielectrics.
Electrostatic energy.
Conductors in equilibrium.
Electrostatic induction. Hollow conductor. Electrostatic screen. Capacitors in
a vacuum. Connection of capacitors. Electrostatic energy. Dielectrics.
Relative, absolute dielectric constant, electrical susceptibility. Polarization
of dielectrics. Definition of the vector D (dielectric induction).
STATIONARY CURRENTS AND
MAGNETOSTATIC FIELDS
2.1 - Electricity.
Electric conduction. Average
current, instantaneous current, current density. Ohm's law for ohmic
conductors. Conductivity and resistivity. Classic model of management.
Electrical resistance. Dependence on temperature. Superconductors. Electricity
and absorbed power. EMF generators Resistors in series and in parallel.
Kirchhoff's laws. Charge and discharge of an RC circuit.
2.2 - Magnetic field.
Properties of magnets. Magnetic
field. Lorentz force. Magnetic force on a current-carrying wire: Laplace's
second elementary law. Torque acting on a current-carrying coil immersed in a
uniform magnetic field. Magnetic moment of a coil traversed by a stationary
current. Hall effect. Motion of a particle in a uniform magnetic field.
2.3 - Sources of the magnetic
field. Ampère's law. Magnetic properties of matter.
Magnetic field produced by an
element of current - Laplace's first elementary law. Magnetic permeability of
vacuum. Ampère-Laplace law for the magnetic field generated by a closed circuit
carried by current. Magnetic field produced by a straight wire (Biot-Savart
law), by a circular coil, by an ideal solenoid. Forces acting on parallel wires
carried by current. Ampère's law. Gauss's law for the magnetic field - Magnetic properties of matter.
Permeability and magnetic susceptibility. Mechanisms of magnetization and
amperian currents.
CURRENTS AND VARIABLE FIELDS
3.1 - Electric and magnetic
fields varying over time.
Faraday's law. Lenz's law.
Current generators. Foucault currents. Self-induction. RL circuits. Magnetic
energy. Magnetic energy density. Mutual induction. Displacement current. Ampère-Maxwell's law. Complements: relativity and electromagnetism.
ELECTROMAGNETIC WAVES
4.1 - Electromagnetic waves.
Solution of the Maxwell equations in vacuum - Lorenz and Coulomb gauges - Plane electromagnetic waves.
Harmonic plane electromagnetic waves. Linear polarization. Poynting vector. Intensity of an e.m. wave Radiation pressure.
Electromagnetic spectrum. Spherical waves.
ELEMENTS OF OPTICS
5.1 - Reflection and refraction
of light and geometric optics
Measurements of the speed of
light. Refractive index. Reflection and refraction. Limiting angle. Total
reflection. Construction of images in geometric optics.
5.2 - Interference, diffraction and polarization of light
Interference of two or more light sources - diffraction (Fresnel and Fraunhofer type) - polarization effects - Malus law - Brewster angle.
Textbook Information
1 - R. A. Serway, Physics, Saunders
2 - D. Halliday, R. Resnick, K.S. Krane, Physics, 2nd vol., J. Wiley & Sons
3 - F.W. Sears, M.W. Zemansky, University Physics, vol II, Pearson
4 - D. Giancoli, Physics, vol. 2, Pearson
Course Planning
Subjects | Text References | |
---|---|---|
1 | Serway, Halliday, Giancoli | |
2 | Serway, Halliday, Giancoli | |
3 | Serway, Sears | |
4 | Sears, Giancoli | |
5 | Serway, Sears | |
6 | Serway. Halliday, Sears, Giancoli | |
7 | Serway, Giancoli, Sears | |
8 | Serway, Roller-Blum | |
9 | Serway | |
10 | Serway, Sears | |
11 | Sears |