Physics Ii

For each quantiry its unit measure in the IS is introduced. Electric charge and its conservation. Coulomb's law. Reminders of graphical description of a field. The electric dipole, its field, force and torque upon it. Divergence and gauss's theorems. Fields generated by symmetrical configurations of charges. Potential, nabla, their properties, application to the fields of above. Conductors, electrostatic induction, electrostatic shielding, Coulomb's theorem. Capacity, of a single and two conductors, Grounding. Capacitors. Dielectrics and alctric polarization. Energy of the electric field. Electric current and continuioty equation. Resistance and Ohm's law. Series and parallel resistors. Electromotive force. Kirchhoff's laws and their application to very simple circuits. Hints to metallic, ionic conductors, semiconductors. Charging and discharging a RC circuit. Voltmeters and ammeters (hints).. The magnetic induction field, Lorentz force. The mass spectrometer. Magnetic force upon a current. The Biot-Savart field and the Lapalce law. The magnetic field on the axis of a circular simple coil and far away for any simple coil. Force between carrying currents.wires. The magnetic dipole and actions upon it. Iunexistence of a single magnetic pole. Dia-para-ferro-magnetism, application to rocks. Ampère's theorem and the solenoid. Electromagnetic induction and the Farady-Neumann-Lenz law, with application to very simple cases. Generators of alternating electromotive force. Fluxmeter and metal detector. Inductance, self-inductance, energy of the magnetic field. Transformer. Kirchhoff's laws for the low-frequency limit, application to the simplest RLC circuit. Displacement current and maxwell's equations. Sinusoidal waves and their terminology. Electromagnetic waves, dispersion relations. Polarization of vector waves. Emission of radiation. Interference. Radiation-matter interaction. Light scattering. Snell's laws. Polarimeter. Michel-Lévy theorem. Field emitted by N sources and diffraction. Huygens' principle and the laws of geometrical optics. Slit diffraction, babinet's principle. Scattering form a point-like obstacle. Physical and geometrical optics. Paraxxial approximation. Sferical lens. Thin lenses, images. Compound microscope.