In this lecture, we will study magnetostatic as sequel chapter of static electricity studied in Electricity and Magnetism I. After this, we will introduce a concept of temporal variation of electricity and magnetism and study their relations. Density of magnetic flux, Magnetic materials, Electromagnetic induction and Magnetic energy will be explained followed by explaining extended Ampere's law based on a concept of displacement current. Through lectures and excises in this class, basic of Electricity and Magnetism will be mastered.
The following abilities will be mastered through this class
1) Understand and explain force produced by current
2) Understand the equations of density of magnetic flux and explain the meaning
3) Explain behaviors and phenomena by magnetic materials and magnetic circuits
4) Explain the meanings of electromagnetic induction and Lorentz force
5) Explain the meanings of inductance and magnetic force
6) Explain the meanings of displacement current and extended Ampere's law
Ampere's law, Magnetic Meterials, Electromagnetic induction, Magnetic energy, Displacement current
|✔ Specialist skills||Intercultural skills||Communication skills||Critical thinking skills||Practical and/or problem-solving skills|
|✔ ・Fundamental specialist skills on EEE|
Students must submit preparation reports in advance and the reports are evaluated in each class. At the end of each class, students solve some excise problems about the contents of the lecture.
|Course schedule||Required learning|
|Class 1||Introduction, Current and Ohm's law ~Definition of current and derivation of Ohm's law||Explain the definition of current, and derive ohm's law|
|Class 2||Electromotive force, Current and static electric field, electric power ~Relation between current and other parameters||Understand the electromotive force. Explain the relations between current and static field, electric power|
|Class 3||Force prodeced by current, Biot-Savart law ~Density of magnetic flux produced by arbitrary current~||Have images about density of magnetic flux produced by current, Explain density of magnetic flux produced by arbitrary current|
|Class 4||Ampere's law and basic equation of density of magnetic flux ~Derivation from Biot-Savart law ~||Derive relationship equations between current and density of magnetic flux|
|Class 5||Vector potential and magnetic flux ~Definition of potential having direction and application to the expression to magnetic flux~||Explain difference of the definitions of scalar and vector potentials|
|Class 6||Magnetic Material, Magnetization and magnetic field, boundary condition ~Definition of magnetization and modification of equations using the definition~||Explain the difference of density of magnetic flux and Ampere's law with a medium, the behavior of the density of magnetic flux at the boundary|
|Class 7||Magnetic circuit, Review of classes 1-7 ~Expression of magnetic material similar to electrical circuit~||Find correspondence relationship between magnetic and electrical circuits, Review the larned things in past classes|
|Class 8||Test level of understanding with exercise problems and summary of the first part of the course ~Solve exercise problems covering the contents of classes 1–7~||Test level of understanding and self-evaluate achievement for classes 1–7.|
|Class 9||Electromagnetic induction ~Faraday's law for electromagnetic induction ~ Lorenz force ~Electromagnetic induction law with coil movement~||Explain the meaning of electromagnetic induction Explain electromagnetic induction law with coil movement|
|Class 10||Inductance ~Self inductance and mutual inductance~||Explain the meaning of inductance|
|Class 11||Summary of electromagnetic induction, and inductance||Self-evaluate achievement for classes 9–10.|
|Class 12||Energy accumulated in inductance ~Amount of work given to a coil~ Work by magnetic effect ~Relation between magnetic energy and by movement of object~||Explain the meaning of the energy accumulated in inductance Explain the relation of amount of work between a fixed coil and a variable loop|
|Class 13||Force by magnetic field ~Principle of virtual displacement||Explain the amount of force by magnetic field|
|Class 14||Displacement current and Maxwell's equation~Extended Ampere's law, , and summary of magnetic energy, force||Explain the meaning of displacement current and Maxwell's equation, and self-evaluate achievement for classes 12–13.|
|Class 15||Test level of understanding with exercise problems and summary of the second part of the course||Test level of understanding and self-evaluate achievement for classes 9–14.|
To enhance effective learning, students are encouraged to spend approximately 100 minutes preparing for class and another 100 minutes reviewing class content afterwards (including assignments) for each class.
They should do so by referring to textbooks and other course material.
The text should be downloaded from OCW-i.
Suematsu, Yasuharu. Electricity and Magnetism. Tokyo: Kyoritsu Shuppan. ISBN-13: 978-4320084179 (Japanese)
Goto, Naohisa. Book to understand Electricity and Magnetism. Tokyo Oham-sha. ISBN-13: 978-4274208539 (Japanese)
Students' knowledge of Density of magnetic flux, Magnetic materials, Electromagnetic induction, Magnetic energy, laws in electricity and magnetism, and their ability to apply them to problems will be assessed.
In fiscal year 2021, test level of understanding (Class 8 and 14 in total) 60%, reports and exercise problems 40%.
Students must have successfully completed Electricity and Magnetism I or have equivalent knowledge.
Notice : Please replace from "[at]" to "[at]"(half-width character).
Nishiyama: Accept questions as long as I am in an office. However, contact by e-mail in advance is recommended to avoid out of office.
Uenohara: Contact by e-mail in advance to schedule an appointment
Final examination (Class 15) will be executed in the classroom, as long as it is allowed officially.