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Electricity and Magnetism
Homeworks and exams have been deliberately suppressed from this online listing.
Instructor: Dr. [Sabieh Anwar] Office hours: are Tuesday and Friday, 2 to 3 pm..
Teaching Instructors: [Noor-ul-hira Shaukat],[Anusha Shahid], [Danish Shahzad], [Muhammad Zaki Jawaid], [Rahma Nawab], [Mohsin Ali Mazhar]. Tutoring sessions. Textbooks: Physics for Scientists and Engineers by Serway/Jewett. (Primary textbook); Matter and Interactions by Chabay and Sherwood. (Useful complementary book) Course outline: Click here for the course outline.
Schedule for Tutoring Sessions -- Fall 2014
| Teaching Assistant | Time | Day | Venue |
|---|---|---|---|
| Noor-ul-hira Shaukat | 01:00 PM - 03:00 PM | Tuesday | Phy. conference room. |
| Anusha Shahid | 02:30 PM - 04:30 PM | Monday | Phy. conference room. |
| Danish Shahzad | 02:00 PM - 04:00 PM | Tuesday | Phy. conference room. |
| Mohsin Ali Mazhar | 11:00 AM - 01:00 PM | Wednesday | Phy. conference room. |
| Muhammad Zaki Jawaid | 01:00 PM - 03:00 PM | Wednesday | Phy. conference room. |
| Rahma Nawab | 09:30 AM - 11:30 AM | Thursday | Phy. conference room. |
Pre-mid term
Electric Fields (2 lectures)
- Electric charge
- Coulomb's law
- Electric field due to point charges
- Electric dipole
- Electric field due to distributed charges; electric field due to a charged rod (1D problem), electric field due to uniformly charged disk (2D problem)
- Recitation: (date=8 September 2014; 11:30 am - 12:45 pm)
Gauss's Law and its Applications (3 lectures )
- Electric flux
- Gauss's law
- Flux due to a point charge
- Electric field due to spherically symmetric charge distribution and linear charge distribution using Gauss's law
- Electric field due to an infinite sheet of charge
- Electric field inside conductor
Note: Microsoft Silverlight (a freeware) is required to view the videos.
Video recordings:
Electric charge, Coulomb's law, electric field, retardation: Part A | Part B
Electric dipole, electric field due to a charged rod, electric field due to uniformly charged disk (part A): [1]
part B: [2]
Electric flux, Gauss's law, flux due to a point charge (part A): [3]
part B: [4]
Application of Gauss's law to spherically symmetric charge distribution and linear charge distribution.[5]
Field due to an infinite sheet of charge, fields inside conductor (part A): [6]
part B: [7]
Electric potential (2 lectures)
- Electric potential and potential difference
- Electric potential due to a point charge
- Different facets of electric potential
Video recordings:
Electric potential, potential difference, electric potential due to point charge: [8]] [Sorry, Part B could not be recorded due to a technical fault.]
Different facets of electric potential (part A): [9]
part B: [10] [Sorry, 20 minutes of audio in part B is missing.]
Capacitors and Dielectrics (2 lectures)
- Definition of capacitance.
- Capacitors with dielectrics
- Parallel-plate capacitors, the cylindrical capacitor
- Energy stored in a charged capacitor
- Combinations of capacitors
Video recordings:
Definition of capacitance, capacitors with dielectrics. [11]
Energy stored in a charged capacitor, combinations of capacitors (part A): [12]
part B: [13]
part C: [14]
Review session on Gauss's law (part A): [15]
part B: [16]
part C: [17]
Current and Resistance (4 lectures)
- Defining the electric current
- Ohm's law
- Drift velocity
- Temperature dependence of resistivity
- Electrical feedback
- kirchhoff's law
Video recordings:
Defining the electric current, relation between current and velocity of charge carriers.(part A): [18]
part B: [19]
Ohm's law, drift velocity, temperature dependence of resistivity [20]
Electrical feedback, Kirchhoff's current law. (part A): [21]
part B: [22]
Charge distribution on the surface of current carrying conductors, what is a resistor, Kirchoff's voltage law. (part A) :[23] part B: [24]
Midterm review. (part A): [25]
part B: [26]
part C: [27]
Post-mid term
Sources of Magnetic Fields (1 lecture)
- Demonstration on Oersted's Discovery: [28]
- Sources of Magnetic Fields
- Magnetic Fields due to moving charges
- Biot Savart law
- Magnetic Field due to current carrying loops
Video recordings:
Magnetic field due to moving charges, Biot-Savart Law: [29]
Forces on moving charges inside a Magnetic Field (2 lectures)
- Magnetic Dipoles
- Electrons inside an atom
- Motion of a charged particle in a uniform magnetic field
- Application: Cathode Ray Tube in a magnetic field
- Magnetic force acting on a current carrying conductor. Demonstration: [30]
- Tutoring session 8: Moving charges in and outside a Magnetic Field
- Cyclotron. Animation: [31]
- Force between two current carrying wires
Video recordings:
Magnetic Dipoles, Electrons inside an atom, Force on a moving charge inside a magnetic field: [32]
Cyclotron, Force between two current carrying wires: [33]
Ampere's Law, Hall Effect, Magnetic Torque and Energy (2 lectures)
- Ampere's Law
- Applications of Ampere's Law (Solenoid, Toroid, Infinite current sheet)
- The Hall Effect
- Forces and Torques on Dipoles
- Potential Energy of a Dipole inside a Magnetic Field
- Force between two Magnetic Dipoles
Video recordings:
Ampere's Law and its applications: [34]
Hall Effect, Magnetic Torque and Potential Energy: [35]
Magnetic Materials (3 lectures)
- Motional EMF. Demonstration: [36]
- Magnetic Materials: Phenomenological Approach
- Paramagnetic and Dimagnetic materials
Video recordings:
Motional EMF and Phenomenological Approach to Magnetic Materials: [37]
Origin of Paramagnetism: [38]
Origin of Diamagnetism and Ferromagnetism: [39]
Time-varying Magnetic and Electric Fields (4 lectures)
- Magnetic Induction and Faraday's Law
- Lenz's Law
- Application: Magnet Moving near a Superconducting Coil, eddy currents, magnetic braking, skin effect
- Tutoring session 12: Time-varying Magnetic and Electric Fields
- Capacitors and RC Circuits.
- Demonstrating the behavior of an RC Circuit: [40]
- Displacement Current: The Maxwell-Ampere's Law
- The Complete Maxwell Equations
- Inductance and RL Circuits
- Demonstration on Electromagnetic Induction and Faraday's Law : [41]
- Energy Flow in Simple DC circuits
- Poynting Vector
Video recordings:
Magnetic Induction and Faraday's Law: Part A [42], Part B [43] and Part C [44]
Lenz's Law, Eddy Currents and Skin Effect: [45]
RC and RL Circuits, Displacement Current and the complete Maxwell's Equations: [46]
Energy Flow in Simple DC Circuits and the Poynting Vector: [47]
150 Years of Maxwell's Equations
- The conceptual origins of Maxwell's Equations and Guage Theory. Author: Chen Ning Yang. Published in Physics Today (November 2014).
- The Long Road to Maxwell's Equations: [48] Author: James C. Rautio. Published in IEEE Spectrum (December 2014).