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Module

MAS3805 : Classical Fields

  • Offered for Year: 2021/22
  • Module Leader(s): Dr Celine Guervilly
  • Owning School: Mathematics, Statistics and Physics
  • Teaching Location: Newcastle City Campus
Semesters
Semester 2 Credit Value: 10
ECTS Credits: 5.0

Aims

To introduce the fundamental concepts and governing equations of classical field theory, with special emphasis on electrodynamics.

Module summary

Classical mechanics of the 18th century has been largely superseded by the ideas of classical field theory. Everything in the physical world, from fundamental particles, to magnetism, light and gravity, is described in terms of a field permeating space and time. The basic ideas of field theory are common to all these applications: moving sources disturb the field, disturbances propagate as waves, and the field reacts back on the sources. The exemplar of field theory is the theory of electric and magnetic fields that forms the core of this module. You will see the power of mathematics in explaining phenomena from electromagnetism and gravity.

Outline Of Syllabus

1. Introduction and revision: Scalar and vector fields; Div, grad, curl and the Laplacian;
Conservative and Solenoidal fields-Poincare Lemma;
Laplace’s equation, Poisson’s equation and the Wave equation.
2. Electrostatics: Coulomb’s Law; Gauss’ Law for discrete charges; Electrostatic potential; Continuous charge distributions.
3. Magnetostatics: Magnetic forces; Electric currents and Ohm’s law; Biot-Savart Law;
Ampere’s law;
Magnetic vector potential.
4. Electromagnetism and waves: Lorentz force law; Displacement currents and electromagnetic induction; Maxwell’s equations;
Wave equations;
Plane wave solutions; Permittivity and dispersive waves.
5. Introduction to Newton’s law of Gravitation with application to astronomy and to finding the attraction between unit a unit point mass and fundamental bodies such as rods, discs and spheres.

Teaching Methods

Teaching Activities
Category Activity Number Length Student Hours Comment
Scheduled Learning And Teaching ActivitiesLecture201:0020:00Formal Lectures – Present in Person
Scheduled Learning And Teaching ActivitiesLecture21:002:00Revision Lectures – Present in Person
Scheduled Learning And Teaching ActivitiesLecture51:005:00Problem Classes – Synchronous On-Line
Guided Independent StudyAssessment preparation and completion151:0015:00Completion of in course assessments
Guided Independent StudyIndependent study581:0058:00Preparation time for lectures, background reading, coursework review
Total100:00
Teaching Rationale And Relationship

Lectures are used for the delivery of theory and explanation of methods, illustrated with examples, and for giving general feedback on marked work. Problem Classes are used to help develop the students’ abilities at applying the theory to solving problems.

Assessment Methods

The format of resits will be determined by the Board of Examiners

Exams
Description Length Semester When Set Percentage Comment
Written Examination1202A80N/A
Other Assessment
Description Semester When Set Percentage Comment
Prob solv exercises2M10Coursework assignment
Prob solv exercises2M10Coursework assignment
Formative Assessments
Description Semester When Set Comment
Prob solv exercises2MN/A
Assessment Rationale And Relationship

A substantial formal unseen examination is appropriate for the assessment of the material in this module. The coursework assignments allow the students to develop their problem solving techniques, to practise the methods learnt in the module, to assess their progress and to receive feedback; these assessments have a secondary formative purpose as well as their primary summative purpose.

In the event of on-campus examinations not being possible, an on-line alternative assessment will be used for written examination 1.

Reading Lists

Timetable