ABSTRACT
At the end of this chapter you should be able to: • appreciate the use of complex numbers in a.c. circuits
• perform calculations on series a.c. circuits using complex numbers
24.1 Introduction
Simple a.c. circuits may be analysed by using phasor diagrams. However, when circuits becomemore complicated analysis is considerably simplified by using complex numbers. It is essential that the basic operations used with complex numbers, as outlined in Chapter 23, are thoroughly understood before proceeding with a.c. circuit analysis. The theory introduced in Chapter 15 is relevant; in this chapter similar circuits will be analysed using j notation and Argand diagrams.
