Mr. A. Ramakrishna a.ramakrishna@vardhaman.org +91 93980 18961
This course enables the fundamentals of electrostatics, magneto-statics and electromagnetic fields. It defines capacitors, inductors and resistors in terms of primary electric and magnetic quantities. It also emphasizes the physical understanding and practical applications of electromagnetics in electrical engineering.
After the completion of the course, the student will be able to:
A6207.1. Apply orthogonal coordinate systems and physical laws to determine electric and magnetic field components.
A6207.2. Analyze electric and magnetic fields in static and time varying fields.
A6207.3. Examine Maxwell’s equations for static and time varying fields.
A6207.4. Evaluate the capacitance, inductance and magnetic force for geometrical conductors in electromagnetic fields.
Static electric fields: Co-ordinate Systems, coulomb’s Law, electrostatic fields, definition of Electric Field Intensity (EFI), EFI due to a line and a surface charge, Work done in moving a point charge in an electrostatic field, Electric Potential, Electric dipole, dipole moment, potential gradient. Gauss’s law, applications of Gauss’s Law, Maxwell’s first law.
Static magnetic fields: Biot-Savart’s law, Magnetic Field intensity(MFI) due to a finite and infinite wire carrying a current I, circular and rectangular loop carrying a current I, Ampere’s circuital law and its applications. MFI due to an infinite sheet of current, a long current carrying filament and co-axial cable, point form of Ampere’s circuital law, Maxwell’s equations for static fields.
Electric and magnetic fields in materials: Laplace’s and Poison’s equations, solution of Laplace’s equation in one variable, capacitance, capacitance of parallel plate, spherical and co-axial capacitors with composite dielectrics, boundary conditions for electric fields, conduction and convection current densities, Ohm’s law in point form, equation of continuity. Self and Mutual inductance, Neumann’s formulae, self-inductance of a solenoid, Toroid and Co-Axial cable, energy stored in a magnetic field.
Force in magnetic mields: Magnetic force, Lorentz force equation, force on a current element in a magnetic field, Force on a long current carrying conductor in a magnetic field, force between two parallel current carrying conductors, magnetic dipole and dipole moment, torque on a current loop placed in a magnetic field, scalar Magnetic Potential and its limitations, magnetic vector potential.
Time varying fields: Faraday’s laws of electromagnetic induction, Its integral and point forms, Maxwell’s fourth equation, Statically and Dynamically induced EMFs, simple problems, modification of Maxwell’s equations for time varying fields, displacement current, Poynting Theorem and Poynting vector.
Inform the instructor any time prior to the due date for an assignment that you wish to use a late day; you may then turn in the assignment up to 24 hours late. Multiple late days may be used on the same assignment. There are no partial late days; turning in an assignment 2 hours late or 20 hours late will both use 1 late day. Note that late days are intended to cover both normal circumstances (you simply want more time to work on the assignment) and exceptional circumstances. The late assignments will receive at most half credit.
It is my ultimate goal for this course, and my teaching, to develop your academic skills, advance your learning of electrical and electronics engineering concepts. To do so will require commitments from myself and from you toward meeting this goal.
I will be prepared and on time for class each day, ready to use class time to help you understand the course material. I will respectfully listen to, understand, and answer questions asked in class.
You are expected to attend class and actively participate in discussions every day, answering questions, asking questions, presenting material, etc. Your participation will be respectful of your classmates, both of their opinions and of their current point in their educational journey, as we each approach the material with different backgrounds and contexts.
I will keep office hours and be available for outside appointments, and respond to emails. I will provide feedback on group presentations, exams, projects, and homeworks.
You are encouraged to provide constructive comments for improving this course for furthering your learning throughout the semester. There will be an opportunity for anonymous course feedback at the end of the semester, in which I hope you all participate. Through your feedback I can improve this course and others for future students.
I will abide by the above syllabus and grade your work fairly.