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### Course Overview

We are surrounded by electromagnetic phenomena; it is not possible to understand the physical world without them. In this course we will discuss the link between electricity and magnetism, noticing that changing electric magnetic fields generate electric fields and the other way around. This will lead to the introduction of Faraday’s law, hugely relevant to understand how we generate electricity, and to the introduction of Maxwell’s correction to Ampere’s law, which will lead to the astounding result that light is an electromagnetic wave! We will finish the course by exploring how electromagnetic waves propagate and how they are originated.

### Course Details

Study Type Level Undergraduate 3 Second Sub Session 15 credits (7.5 ECTS credits) None. No Dr Carmen RomanoDr Murilo Baptista

### Qualification Prerequisites

• Either Programme Level 3 or Programme Level 4

None.

### What courses cannot be taken with this course?

• PX3008 Electricity and Magnetism (Studied)

No

### Course Description

The course content reflects the learning outcomes:

• Electric fields related to their sources Coulomb's law.
• Gauss' theorem (integral and differential form) Electric potential and Poisson's equation.
• Electrostatic properties of media Electric dipole.
• Dielectrics.
• Polarisation.
• Electric Displacement (D).
• Relative permittivity Gauss' theorem in dielectric media.
• Boundary conditions for E and D.
• Capacitance Energy stored in electric fields.
• Current density and conservation of charge.
• Conductivity and resistance.
• Magnetic fields related to their sources Biot-Savart law.
• Ampere's theorem (integral and differential form) Gauss' theorem for magnetic fields.
• Magnetostatic properties of media Magnetic dipole.
• Magnetisation Magnetic Intensity (H).
• Relative permeability.
• Ampere's theorem in magnetisable media.
• Boundary conditions for B and H.
• Mutual inductance and the transformer.
• Eddy currents Energy stored in magnetic fields.
• Maxwell's equations.
• Electromagnetic waves.
• Waves in free space, dielectrics and conducting media.
• Poynting vector Radiation and aerials.

### Further Information & Notes

This is a course on fundamental electromagnetic phenomena; it aims to develop a physical appreciation of Maxwell's equations and their consequences. Practical applications and electromagnetic properties of materials are emphasised. The course is also a vehicle for the introduction of theorems in vector calculus that have wide application in physics. This course aims to develop an understanding of the electromagnetic properties of materials and of the dominant role of electromagnetism in technology based on the concepts embodied in Maxwell's equations.

Details, including assessment, may be subject to change until 31 July 2022 for 1st half-session courses and 23 December 2022 for 2nd half-session courses.

### Contact Teaching Time

Information on contact teaching time is available from the course guide.

### Teaching Breakdown

• 2 Lectures during University weeks 25 - 35
• 1 Support Tutorial during University weeks 26 - 35
• 1 Tutorial during University weeks 25 - 35

Details, including assessment, may be subject to change until 31 July 2022 for 1st half-session courses and 23 December 2022 for 2nd half-session courses.

### Summative Assessments

1st Attempt: 1 two-hour written examination paper (50%), 1 mid-term exams (25%), 4 continuous assessments (12.5%) and weekly tutorial sheets (12.5%). Resit: 1 two-hour written examination paper (100%).

### Formative Assessment

By dialogue with the lecturer in class and by means of problem classes.

### Feedback

Feedback will be immediate in problem classes and within two weeks (usually one) in summative assessments.

None.

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