City University of Hong Kong
Electronic Engineering
Semester A 2015-2016
EE2104 Introduction to Electromagnetics
Assignment 4
Deadline: 3:00 pm, 03 Nov 2015 (AC1-G6352)
Please put down your name and university ID. SI units are used unless otherwise specif
CHAPTER 5
DIELECTRICS AND CONDUCTORS
Most matters can be classified as dielectrics and conductors:
1) Dielectrics are insulating materials. They consist of bound
charges that are not free to move. They react to electric field
by forming dipoles or alignin
CHAPTER 9
AMPERES LAW
Just as Gausss law relates electric flux to the charge
enclosed by a surface; Amperes law relates magnetic field to
the current enclosed by a loop. We define the magnetic field
intensity H, at this moment, by the following expression
CHAPTER 7
POISSONS AND LAPLACES EQUATIONS
Electrostatic problems can be formulated in terms of the
potential V(x, y, z). We can calculate V directly from the
geometry of the given system. The governing equation is
called the Poissons equation. For the spe
CHAPTER 6
POTENTIAL AND CAPACITANCE
We have been dealing with forces and fields in the previous
chapters. When an external force acts on an object and moves
over a distance, work is done and energy is transferred to the
object. If the external force is ac
City University of Hong Kong
EE2104 Introduction to Electromagnetics
Semester A 2014/2015
Final Exam Solution Keys
Solution 1:
(a)
The magnitude of the electric field |E| = (22+32)1/2 = 3.61 V/m
(b)
The radial unit vector at point P is
The radial componen
Name:_
UID:_
Seat No.:_
City University of Hong Kong
Electronic Engineering
Semester A 2014-2015
EE2104 Introduction to Electromagnetics
Quiz 1 Solution
Time: 6:00pm~6:20pm; 22 Sep 2014
Instructions:
1. This is a closed-book test. Students are not allowed
Name:_
UID:_
Seat No.:_
City University of Hong Kong
Electronic Engineering
Semester A 2014-2015
EE2104 Introduction to Electromagnetics
Quiz 1m Solution
Instructions:
1. This is a closed-book test. Students are not allowed to use any written material.
2.
Name:_UID:_
Seat No.:_
City University of Hong Kong
Electronic Engineering
Semester A 2014-2015
EE2104 Introduction to Electromagnetics
Midterm Solution
Time: 12:00nn~12:50pm Oct 15 (AC1-LT9)
Instructions:
1. This is a closed-book test. Students are not a
CHAPTER 1
INTRODUCTION TO ELECTROMAGNETISM
Electrical engineering is founded on the theory of
electromagnetism. The theory of electromagnetics (EM) deals
with interactions of charged particles and the electromagnetic
fields.
I. Topics
Electrostatics:
Sta
CHAPTER 3
ELECTROSTATIC FIELD
Electrostatics deals with electric charges at rest. The
fundamental physical observation is that charges exert
electrostatic forces on each other through the electric field E.
Depending on the physical situation, a collection
CHAPTER 2
MATHEMATICS PRELIMINARIES
Electromagnetism deals with scalar and vector field
quantities. A field is usually a function of 3-dimensional
space (x, y, z) and also of time t.
If it is a scalar field,
it has only a magnitude at each (x, y, z, t).
I
City University of Hong Kong
Electronic Engineering
Semester A 2015-2016
EE2104 Introduction to Electromagnetics
Assignment 3
Deadline: 3:00 pm, 13 Oct 2015 (AC1-G6352)
Please put down your name and university ID.
1. In a dielectric material, the electric
City University of Hong Kong
Electronic Engineering
Semester A 2014-2015
EE2104 Introduction to Electromagnetics
Assignment 5
Deadline: 7:00 pm, 5 Dec 2014 (AC1-G6352)
Please put down your name and university ID. SI units are used unless otherwise specifi
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CHAPTER 4
GAUSSS LAW
Field lines were defined such that the line density is 0E. This
chapter focuses on the case of treating charges in free-space.
We define the electric flux density, or electric displacement,
at this moment, as:
D = 0E
The expression is
Name:_
UID:_
Seat No.:_
City University of Hong Kong
Electronic Engineering
Semester A 2014-2015
EE2104 Introduction to Electromagnetics
Quiz 2 Solution
Time: 12:00nn~12:20pm Nov 19 AC1-LT9
Instructions:
1. This is a closed-book test. Students are not all
CITY UNIVERSITY OF HONG KONG
Course code & title
: EE2104 Introduction to Electromagnetics
Session
: Semester A 2014/2015
Time allowed
: Two hours
This paper has 6 pages (including this cover page)
1. This paper consists of 4 questions.
2. Answer ALL ques
City University of Hong Kong
Electronic Engineering
Semester A 2014-2015
EE2104 Introduction to Electromagnetics
Tutorial A: Mathematical Preliminaries
1. Express the rectangular unit vectors x and y in terms of the cylindrical unit vectors and at
point (
CHAPTER 11
QUASI-STATIC ELECTROMAGNETICS
We are in a position to allow the fields to vary with time.
This chapter deals with the quasi-static case that the fields
only vary slowly. Magnetic fields can induce electric fields as
governed by the Faradays law
CHAPTER 6
POTENTIAL AND CAPACITANCE
We have been dealing with forces and fields in the previous
chapters. When an external force acts on an object and moves
over a distance, work is done and energy is transferred to the
object. If the external force is ac
CHAPTER 4
GAUSSS LAW
Field lines were defined such that the line density is 0E. This
chapter focuses on the case of treating charges in free-space.
We define the electric flux density, or electric displacement,
at this moment, as:
D = 0E
The expression is
CHAPTER 5
DIELECTRICS AND CONDUCTORS
Most matters can be classified as dielectrics and conductors:
1) Dielectrics are insulating materials. They consist of bound
charges that are not free to move. They react to electric field
by forming dipoles or alignin
CHAPTER 9
AMPERES LAW
Just as Gausss law relates electric flux to the charge
enclosed by a surface; Amperes law relates magnetic field to
the current enclosed by a loop. We define the magnetic field
intensity H, at this moment, by the following expression
CHAPTER 2
MATHEMATICS PRELIMINARIES
Electromagnetism deals with scalar and vector field
quantities. A field is usually a function of 3-dimensional
space (x, y, z) and also of time t.
If it is a scalar field,
it has only a magnitude at each (x, y, z, t).
I
CHAPTER 3
ELECTROSTATIC FIELD
Electrostatics deals with electric charges at rest. The
fundamental physical observation is that charges exert
electrostatic forces on each other through the electric field E.
Depending on the physical situation, a collection
CHAPTER 7
POISSONS AND LAPLACES EQUATIONS
Electrostatic problems can be formulated in terms of the
potential V(x, y, z). We can calculate V directly from the
geometry of the given system. The governing equation is
called the Poissons equation. For the spe
CHAPTER 8
MAGNETOSTATIC FIELD
Currents are made up of moving charges. Magnetostatics
deals with the interactions of steady state currents. This
chapter is concerned with the magnetic field B generated by
the currents. For any current I flowing along a lin
CHAPTER 10
MAGNETIC INDUCTANCE
Magnetic dipoles can be found in most materials. They exist
in both conductors and dielectrics. The dipoles tend to align
with the external magnetic field so that their collective effects
must be considered. Magnetic materia