The purpose of electrical circuits is to supply electricity for an appliance, tool, or other type of electrical device. These devices are called loads. Before the load will operate, electricity must have a complete path from the source to the load and back to the source. This path for electricity is called a circuit. Two types of circuits are commonly used to supply electrical power, series and parallel.
This chapter will explore some of the principles of series and parallel circuits and how to calculate the amperage and/or voltage of these circuits.
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