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f-alpha.net » Physics » Electricity » Battery » Let's go... » Experiment 9 - Parallel Circuit

Experiment 9 - Batteries in a Parallel Circuit

Connect two 9 volt batteries in a parallel circuit. The resulting voltage of the circuit stays 9 volt.

Voltage measurement of two real batteries in a parallel circuit.

Parallel Circuit

If the components are connected such that there are several paths for the current through the components, it is called a parallel circuit. Strictly speaking, there is the same number of paths as components.

From Kirchhoff's Voltage Law (KVL) follows that to all components apply the same voltage.

Use only batteries of the same voltage in a parallel circuit! You will see why later.

But why would you join together two batteries in a parallel circuit? For that, look to the internal resistance of the parallel circuit...

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