ABSTRACT
A firm understanding of the basic principles associated with series and parallel circuits is a sufficient background to begin an investigation of any single-source d.c. network having a combination of series and parallel elements or branches. Confidence in the analysis of series-parallel networks comes only through exposure, practice, and experience. This chapter explains, with examples, series, and parallel and series/parallel networks. It considers the relationships between voltages, currents and resistances for these networks through calculations. The chapter discusses unknown voltages, currents and resistances in a parallel network and explores unknown voltages, currents and resistances in series-parallel networks. It aims to understand current division in a two-branch parallel network and describes the advantages and disadvantages of series and parallel connection of lamps. The potential differences measured across three resistors connected in series are 5 V, 7 V and 10 V, and the supply current is 2 A.
