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PHY204

Electrodynamics I

  • Sciences
  • 200 level
  • 2 credit units
  • 146 pages
  • 10 units

This course explores the fundamental principles of electrodynamics, focusing on electrostatics in insulating media and the magnetic properties of matter. It covers topics such as dielectric materials, capacitance, and magnetism. Students will learn about macroscopic and microscopic properties of dielectrics, Gauss's law, displacement vectors, and boundary conditions. The course also delves into the behavior of materials in magnetic fields, including diamagnetism, paramagnetism, and ferromagnetism, providing a comprehensive understanding of electromagnetic phenomena.

About this course

Difficulty
Intermediate
Study hours
40 hours
Maths
Intermediate
Content
Theoretical, problem solving
Practical work
No
Before you start
  • PHY101: Introductory Physics
  • MAT101: Basic Mathematics
How it is assessed
  • Assignments
  • Tutor marked assessments
  • Final examination

One paragraph, so you can see how it reads

PHY204 · UNIT 1 MACROSCOPIC PROPERTIES OF DIELECTRICS

In the next unit you will study the details of capacitors, especially the capacitance of a capacitor, energy stored in a capacitor, capacitor with dielectric, different forms of capacitors, etc.

What you should be able to do

  1. Explain the behavior of dielectrics in electric fields
  2. Apply Gauss's law to dielectric media
  3. Define and calculate capacitance
  4. Analyze magnetic properties of materials
  5. Understand the relationship between electric and magnetic fields

What it prepares you for

Careers
  • Electrical Engineer
  • Electronics Engineer
  • Materials Scientist
  • Research Scientist
Where it is applied
  • Telecommunications
  • Electronics Manufacturing
  • Power Generation
  • Aerospace

Where it gets hard

The units students slow down on, and what makes each one heavy.

  • Module 3: Microscopic Properties of Dielectrics

    Unit 3: Microscopic Properties of Dielectrics

    Requires strong understanding of calculus and vector algebra to derive Clausius-Mossotti formula and relate polarizability to permittivity and refractive index.

  • Module 4: Magnetism of Materials I

    Unit 4: Magnetism of Materials I

    Understanding the relationship between magnetic dipole moment and angular momentum requires grasping quantum mechanical concepts.

A suggested way through it

Suggested

13 weeks, about 39 hours in total. Yours will differ.

  1. Week 1Module 1: Macroscopic Property of Dielectrics
    • Unit 1: Macroscopic Property of Dielectrics · 3 hours

      Study the simple model of dielectric material.. Understand the behavior of a dielectric in an electric field.. Differentiate between non-polar and polar molecules..

  2. Week 2Module 1: Macroscopic Property of Dielectrics
    • Unit 1: Macroscopic Property of Dielectrics · 3 hours

      Apply Gauss's law in a dielectric medium.. Understand and apply the concept of displacement vector.. Solve boundary conditions on D and E..

  3. Week 3Module 1: Macroscopic Property of Dielectrics
    • Unit 1: Macroscopic Property of Dielectrics · 3 hours

      Study dielectric strength and dielectric breakdown.. Review all concepts from Unit 1.. Attempt Tutor-Marked Assignment for Unit 1..

  4. Week 4Unit 2: Capacitor
    • Unit 2: Capacitor · 3 hours

      Define capacitance and understand its relationship with charge and potential.. Study parallel plate capacitors and their properties.. Calculate energy stored in a capacitor..

  5. Week 5Module 2: Capacitor
    • Unit 2: Capacitor · 3 hours

      Analyze parallel plate capacitors with dielectrics.. Calculate capacitance of cylindrical capacitors.. Understand capacitors in series and parallel..

  6. Week 6Module 2: Capacitor
    • Unit 2: Capacitor · 3 hours

      Study energy stored in a dielectric medium.. Learn about different forms of practical capacitors.. Attempt Tutor-Marked Assignment for Unit 2..

  7. Week 7Module 3: Microscopic Properties of Dielectrics
    • Unit 3: Microscopic Properties of Dielectrics · 3 hours

      Review the microscopic picture of a dielectric in a uniform electric field.. Define and understand the concept of local field.. Study the determination of local field in cavities of a dielectric..

  8. Week 8Module 3: Microscopic Properties of Dielectrics
    • Unit 3: Microscopic Properties of Dielectrics · 3 hours

      Derive and understand the Clausius-Mossotti formula.. Study polarization in a gas.. Establish the relation between polarizability and relative permittivity..

  9. Week 9Module 3: Microscopic Properties of Dielectrics
    • Unit 3: Microscopic Properties of Dielectrics · 3 hours

      Establish the relation between polarizability and refractive index.. Study the behavior of dielectrics in alternating fields.. Attempt Tutor-Marked Assignment for Unit 3..

  10. Week 10Module 4: Magnetism of Materials I
    • Unit 4: Magnetism of Materials I · 3 hours

      Study the response of various substances to a magnetic field.. Understand magnetic moment and angular momentum of an atom.. Differentiate between diamagnetism and paramagnetism..

  11. Week 11Module 4: Magnetism of Materials I
    • Unit 4: Magnetism of Materials I · 3 hours

      Study the interaction of an atom with a magnetic field (Larmor precession).. Understand the magnetization of paramagnets.. Attempt Tutor-Marked Assignment for Unit 4..

  12. Week 12Module 5: Magnetism of Materials II
    • Unit 5: Magnetism of Materials II · 3 hours

      Study ferromagnetism and its properties.. Understand magnetic field due to a magnetized material.. Learn about the auxiliary field H (magnetic intensity)..

  13. Week 13Module 5: Magnetism of Materials II
    • Unit 5: Magnetism of Materials II · 3 hours

      Understand the relationship between B and H for magnetic materials.. Study magnetic circuits and their analysis.. Attempt Tutor-Marked Assignment for Unit 5..

Preparing for the exam

What to do
  • Review all Tutor Marked Assignments (TMAs) and Self-Assessment Exercises (SAQs).
  • Focus on understanding Gauss's Law and its applications in different media (Units 1 and 3).
  • Practice solving problems related to capacitance and energy storage (Unit 2).
  • Create concept maps linking diamagnetism, paramagnetism, and ferromagnetism (Units 4 and 5).
  • Dedicate extra time to understanding the mathematical derivations of key formulas, such as the Clausius-Mossotti equation (Unit 3).

Questions students ask about this course

What is PHY204 about?

This course explores the fundamental principles of electrodynamics, focusing on electrostatics in insulating media and the magnetic properties of matter. It covers topics such as dielectric materials, capacitance, and magnetism. Students will learn about macroscopic and microscopic properties of dielectrics, Gauss's law, displacement vectors, and boundary conditions. The course also delves into the behavior of materials in magnetic fields, including diamagnetism, paramagnetism, and ferromagnetism, providing a comprehensive understanding of electromagnetic phenomena.

How many units does PHY204 have?

PHY204, Electrodynamics I, has 10 units across 2 modules, over 146 pages of course material. You can read it one unit at a time.

How many credit units is PHY204?

PHY204 carries 2 credit units, at 200 level in Sciences.

Is PHY204 hard?

PHY204 is rated intermediate level, with intermediate mathematical content. It is mostly theoretical and problem solving work.

How long does PHY204 take to study?

About 40 hours of study, spread across its 10 units.

How is PHY204 assessed?

PHY204 is assessed by assignments, tutor marked assessments and final examination.

What do I need before starting PHY204?

PHY101: Introductory Physics MAT101: Basic Mathematics

What can I do with PHY204?

Electrical Engineer, Electronics Engineer, Materials Scientist and Research Scientist.

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