## PHY 102: University Physics II

### Course rationale

This course fulfills the requirement of general education in Natural Sciences for graduation from the university for students of physics, engineering, and computer science. It forms a one-year standard course in University Physics. It is highly recommended that the students must have a fair amount of background in vectors, mechanics, and mathematics. Especially, knowledge of calculus will be required sometimes. The course will lay emphasis mainly on the physical description of processes rather than complicated mathematical derivations.

### Course content

Electrostatic Force & Electric Field: Concept of charge; Coulomb’s law; Concept of electric field and its calculation; Electric dipole; Gauss’s law in electrostatic and its application. Electric field due to dipole, Torque on a dipole in uniform E-field, Gauss’s law in differential form. Electric Potential: Electric potential and its calculation; Electric potential energy; Relationship between Field and Potential; Equipotential surface; Potential gradient. Capacitance: Capacitors; Capacitors in series and parallel; Energy of charged capacitors; Electrical energy density in terms of an electric field; the concept of an electron volt. Dielectric: Dielectric media, polarization vector & displacement vector. Capacitor with a dielectric material. Gausses law with dielectric. Current, Resistance & Electromotive Force: Current and current density; Resistance and Resistivity; Ohm’s law; EMF, Power; Resistance in series and parallel; Kirchhoff’s Rules. Magnetic Field and Electromagnetic Induction: Magnetic field; Magnetic flux; Lorentz Force; Gauss’s law for magnetism; Motion of charged particles in a magnetic field: Magnetic field intensity; Biot-Savart Law; Ampere’s law and its applications; Magnetic properties of matter; paramagnet; diamagnet and ferromagnet; Magnetization vector; Hysteresis. Induction and Inductance: Induced emf and Faraday’s law of induction; Lenz’s law; Mutual inductance; Self-inductance; Energy in an inductor; Transformers. Direct Current (DC) Circuits: R-C circuit; R-L circuit; L-C circuit; R-L-C circuit. Alternating Currents (AC) Circuit: Introduction; Circuit containing resistance (R), inductance (L) or capacitance(C); The R-L-C Series circuit; Average and RMS values; Power in AC circuits; Series resonance. Electromagnetic Waves: Introduction; Speed of an electromagnetic wave; Energy in electromagnetic
waves; Properties of electromagnetic waves; Maxwell equations.

### Course objectives

1. Familiarize oneself with the fundamental concepts of electricity and magnetism, the basic laws that
underlie the properties of electric circuit elements.
2. Recognize, memorize and re-express problems of Electricity and Magnetism using the proper
mathematical form, like vector algebra and basic calculus.
3. Use Coulomb’s and Gauss’s law for electrostatics, Ampere’s law to calculate the magnetic field, and
Faraday’s law in the induction problem.
4. Understand the dynamics charging and discharging process of the RC circuit.
5. Recognize and understand the working principle of the LR and LRC circuits.
6. Familiarize oneself with the nature and propagation mechanism of electromagnetic waves.
7. Identify and apply physical concepts and terminology used in electromagnetic wave theory and able to
make some approximate findings of wave phenomena.

### References

1. University Physics: Sears; Zemansky and Young: 12th edition.
2. Fundamentals of Physics: David Halliday; Robert Resnick; J. Walker: Willey & Sons, 10th edition.
3. Foundation of Electromagnetic Theory: J. Reitz; F. Milford and R. Christy: Addison-Wesley: 4th edition.
4. Samuel J. Ling, Jeff Sanny and Bill Moebs; University Physics, OpenStax.