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Electromagnetism 1


  1. Introduction
  2. Weekly Tutorial Problems
  3. Supplemental Material
  4. Useful Resources
  5. Some Interesting Things

§ 1 Introduction

The aim of this module is to introduce you to electrostatics and magnetostatics. These are the studies of charges at rest and steady currents. The electromagnetic force holds atoms, molecules and materials together and plays a vital role in most day-to-day physics one can observe. For example, TV remote controllers, microwave ovens, any electronic device, mobile phones, glasses and many other things all rely on electromagnetic phenomena to function. Interestingly, electromagnetism is arguably the most complete physical theory we have today, as it describes classical and quantum phenomena with equal effectiveness.

More recent research in electromagnetism has focused on how materials with novel electromagnetic properties can be designed and built. Some famous examples include invisibility cloaks [1] and perfect lenses [2]. Exeter University is a leader in this field, with it's metamaterials centre for doctoral training [3].

These tutorials are not part of the module assessment (problems solved here are not marked). Instead, the aim is to develop problem solving, understanding and intuition. Each week, questions supporting the lectures will be set. These should take approximately 1 hour. The problems will be mostly taken from exam questions, so that students get practice solving these kinds of problems, however some additional `challenge' questions might be included if they illustrate something important or interesting.

§ 2 Weekly Tutorial Problems

§ 3 Supplemental Material

Here, I will include any scripts or notes that supplement the tutorial problems. This may include scripts to plot fields, or notes on how to calculate things which you might be given but may wish to know how they can be derived.

§ 4 Useful Resources

§ 5 Some Interesting Things


[1] Science 312(5514): 1780–1782 (2006)
[2] Phys. Rev. Lett. 85(18): 3996-3969 (2000)
[3] Exeter Metamaterials CDT (website)
[4] D. J. Griffiths, "Introduction to Electrodynamics" 4th Ed. (Pearson, London, 2013)
[5] Del in cylindrical and spherical coordinates
[6] Vector calculus identities
[7] The Feynman Lectures
[8] G. B. Arfken and H. J. Weber, "Mathematical Methods of Physicists" 6th Ed. (Elsevier Academic Press, London, 2005)
[9] David Tong's Electromagnetism lecture notes (Web page)