This new edition provides an introduction to electromagnetic theory with an emphasis on the applications in electronic engineering. A full theoretical treatment of electromagnetic problems is given where appropriate, in order to give a full understanding of the solutions adopted in practical situations. A new chapter has been added on electromagnetic compatibility, which is a subject that all electronic engineers need to be aware of. There are increased references to the non-ideal behaviour of electronic components and circuits to explain how and why circuits differ from the idealizations of circuit theory. In particular, attention is drawn to the effects of parasitic capacitances and inductance on the frequency dependence of resistance and on the properties of electromagnetic screens. The text includes revised treatment of numerical and approximate methods for calculating resistance, capacitance, and inductance. Students are encouraged to go on to use the professional literature, and full references for further reading are given. With its clear presentation of both the theoretical and practical implications of electromagnetism, the use of marginal notes and numerous worked examples and student problems, this is a useful text for first year degree and diploma students of electronic and electrical engineering.