# Is the following a parallel or a series circuit?

#### Tetra

Imagine two copper plates 6" square with a single wire soldered to each plate. Now arrange several D-size batteries, as many as you can arrange standing up on their '-' ends, on one of the plates as it's laying flat on the table. Now set the other plate on top, so it touches all the '+' ends.

What is the effect of arranging the batteries like this? I *think* that the output of all is the same as one, but it will last a lot longer.

#### MBW

You are correct,
The effect of placing batteries side by side is to produce a battery pack with the same voltage output as the individual batteries, but capable of delivering more power (higher available current).

The other way of connecting batteries is end to end (in series).
This gives the same (maximum available) current as a single battery, but a higher voltage

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#### Jerromyjon

Are each battery individually serial or parallel or both?

#### Troll

It is neither as it is not a closed circuit... if you connect the two wires to something then you will have a circuit. The batteries however are in a parallel configuration. A parallel circuit is a current divider, a series circuit is a voltage divider.

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