ABSTRACT
This chapter provides information for anyone pursuing a career in aircraft maintenance engineering or a related aerospace engineering discipline with an introduction to the essential electrical theory. It is particularly useful for those who have not previously studied electrical principles. The chapter explains the electron theory, the Bohr model of the atom, Electromagnetism and inductors, Electromagnetic induction, Faraday’s and Lenz’s laws, Self-inductance and mutual inductance, Frequency and periodic time, Three-phase supplies, Impedance, Resonance, Power factor, Complex notation, Transformers. When working on aircraft electrical and electronic systems, personal safety (both yours and of those around you) should be paramount in everything that you do. Hazards can exist within many circuits – even those that, on the face of it, may appear to be totally safe. The severity of electric shock depends upon several factors including the magnitude of the current, whether it is alternating or direct current, and its precise path through the body.
