Series Circuit Defined

A series circuit is one in which items are arranged in a chain, one following the other, so the current has only one path to take. The current is the same through each item.

Series circuits are used for several reasons:

1. To increase a voltage source.

The following is true of any standard battery, but let’s use the AA battery as an example. If you put one AA battery in a circuit, you will have a power source of 1.5 volts because that’s the voltage of a standard AA battery.



If you want 3 volts, you can place two AA batteries in series which gives you 1.5 V + 1.5V, which equals 3V.

AA double batteries and lamp





Put three AA batteries in series and you will get 4.5 volts, etc.

More coming soon.


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