Physics ΙΙ

Lectures

Properties of electric charges. Coulomb’s Law. The electric field. Electric field of a continuous charge distribution. Motion of charged particles in a uniform electric field - Electric flux. Gauss’s Law. Application of Gauss’s law to various charge distributions. Conductors in electrostatic equilibrium.- Potential difference and electric potential. Potential differences in a uniform electric field. Electric potential due to continuous charge distributions. Electric potential due to a charged conductor. - Electric potential and potential energy due to point charges. Obtaining the value of the electric field from the electric potential. Applications of electrostatics. - Capacitors. Definition and calculation of capacitance. Combinations of capacitors. Energy stored in a charged capacitor and electric field. Electric dipole in an electric field. Capacitor with dielectrics. An atomic description of dielectrics. Current and resistance. Electric current. Resistance. A model for electrical conduction. Resistance and temperature. Electrical power. - Direct current circuits. Electromotive force. Resistors in series and parallel. Kirchhoff’s rules. RC circuits. Electrical meters.- Magnetic fields and forces. Magnetic force acting on a current-carrying conductor. Torque on a current loop in a uniform magnetic field. Applications involving charged particles moving in a magnetic field. The Hall effect. - Sources of the magnetic field. The Biot-Savart law. The magnetic force between two parallel conductors.  Ampere’s law. The magnetic field of a solenoid.- Magnetic flux. Gauss’s law in magnetism. Displacement current and the general form of Ampere’s law. Magnetism in matter.- Faraday’s law of induction. Motional Electro Magnetic Force (EMF). Lenz’s law. Induced EMF and electric fields. Generators and motors. Eddy currents. Self-inductance. RL circuits. Energy in a magnetic field. Oscillations in an LC circuit. The RLC circuit. - Alternating current circuits. Inductance. Resistors, inductors and capacitors  in an AC circuit. The RLC series circuit. Power in an AC circuit. Resonance in a series RLC circuit. The transformer and power transmission