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Electricity and Magnetism (I) 電磁學 (I). WeekDateContentRemark 19/16-17 Chapter 1 The Electromagnetic Model Chapter 2 Vector Analysis 29/23-24 Unit Test.

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Presentation on theme: "Electricity and Magnetism (I) 電磁學 (I). WeekDateContentRemark 19/16-17 Chapter 1 The Electromagnetic Model Chapter 2 Vector Analysis 29/23-24 Unit Test."— Presentation transcript:

1 Electricity and Magnetism (I) 電磁學 (I)

2 WeekDateContentRemark 19/16-17 Chapter 1 The Electromagnetic Model Chapter 2 Vector Analysis 29/23-24 Unit Test 1 (Chapter 1 、 Chapter 2) 3-1 Introduction 3-4 Gauss’s Law and Applications 15% 39/30-10/1 3-5 Electric Potential 3-9 B.C. for Electrostatic Fields 410/7-8 3-10 Capacitance and Capacitors 3-11 Electrostatic Energy and Forces 510/14-15 Unit Test 2 (Chapter 3) 4-1 Introduction 4-3 Uniqueness of Electrostatic Solutions 15% 610/21-22 CSSSW9 (No Class) 710/28-29 4-4 Method of Images 4-7 BVP in Different Coordinates 811/4-5 Unit Test 3 (Chapter 4) 5-1 Introduction 5-3 Electromotive Force & Kirchhoff’s Volt. Law 15% 911/11-12 5-4 Equation of Continuity & Kirchhoff’s Curr. Law 5-7 Resistance Calculations 1011/18-19 Unit Test 4 (Chapter 5) 6-1 Introduction 6-4 The Biot-Savart Law and Applications 15% 1111/25-26 6-5 The Magnetic Dipole 6-9 Behavior of Magnetic Materials 1212/2-3 6-10 Boundary Conditions for M Fields 6-13 Magnetic Forces and Torques 1312/9-10 Unit Test 5 (Chapter 6) 7-1 Introduction 7-2 Faraday’s Law of E-M Induction 15% 1412/16-17 7-3 Maxwell’s Equations 7-5 E-M Boundary Condition 1512/23-24 7-6 Wave Equations and Their Solutions 7-7 Time-Harmonic Fields 1612/30-31 171/6-7 Final Exam (Chapter 1 ~ Chapter 7) 25% 181/13-14 No Class Electricity and Magnetism I 電磁學Ⅰ 電磁學Ⅰ Professor: J.Y. Liu 劉正彥 E-mail: jyliu@jupiter.ss.ncu.edu.tw TEL: 03-4227151 ext. 65736jyliu@jupiter.ss.ncu.edu.tw Textbook: Field and Wave Electromagnetics, 2 nd Ed. 1989, David K. Cheng Class Hour: Thursday 08:00~09:00 & Friday 10:00~12:00 Classroom: S4-209 Office Hour: Teaching Assistant: 陳世平 976203025@cc.ncu.edu.tw. 林其彥 986403005@cc.ncu.edu.tw. 孫楊軼 986403008@cc.ncu.edu.tw # attendance/quiz: 15% 100% = 15% + 15% × 5 × (4/5) + 25%

3 1 The Electromagnetic Model 1-1 Introduction 1-2 The Electromagnetic Model 1-3 SI Units and Universal Constants

4 1-1 Introduction Electromangtics: the study of the effects of electric charges at rest and in motion. A field is a spatial distribution of a quantity; action at a distance. Wave: period/frequency, amplitude, phase; energy. Time varying electric and magnetic fields are coupled, resulting in an electromagnetic field. Time-dependent electromagnetic fields produce waves.

5 1-2 The Electromagnetic Model Two approaches in development of a science subject: the inductive ( 歸納 ) approach and the deductive ( 演繹 ) approach. Idealized model <> Real world Three essential steps in building a theory on an idealized model: define quantities, specify operations, and postulate fundamental relations.

6 Electric charge

7 Conservation of electric charge The principle of conservation of electric charge must be satisfied at all times and under any circumstances. The equation of continuity.

8 Charge density Current

9 Fundamental EM Field quantities

10 1-3 SI Units and Universal Constants SI unit: International System Unit

11 The universal constant Velocity of EM wave in free space Permittivity 電容率、介電常數 of free space Permeability 磁導率、磁導係數 of free space

12

13

14 2 Vector Analysis

15 2-1 Introduction 2-2 Vector Addition and Subtraction 2-3 Product of Vectors 2-4 Orthogonal Coordinate Systems 2-5 Integrals Containing Vector Functions 2-6 Gradient of a Scalar Field 2-7 Divergence of a Vector Field 2-8 Divergence Theory 2-9 Curl of a Vector Field 2-10 Stokes’s Theory 2-11 Two Null Identity 2-12 Helmholtz’s Theory

16 The law of cosines (length)

17 Vector product (area)

18 Scalar triple product (volume)

19 Vector triple product (Back-cab rule)

20 2-4 Orthogonal Coordinate System

21 2-6 Gradient of a Scalar Field

22 2-7 Divergence of a Vector Field

23 2-8 Divergence Theory Flow Source

24 2-9 Curl of Vector Field

25

26 2-10 Stokes's Theory

27 2-11 Two Null Identities

28

29 2-12 Helmholtz’s Theory


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