Experiment 1 - Batteries in a Series Circuit
You can combine two or more batteries in order to obtain different voltages.
How should such a circuit look like?
You find it out here.
In this first experiment,
you connect two AA batteries in a series circuit.
The positive terminal of a battery is connected
to the negative terminal of the second battery.
Both batteries have a voltage of 1.5 V.
What is the resulting voltage?
To find out, construct the shown circuit and measure the voltage.
Series Circuit of two AA-Batteries.
Circuit diagram of two batteries in series.
You measure a total voltage of 3 V.
In a series circuit of batteries the voltages
of the individual batteries add up...
Utotal = U1 + U2 = 1.5 V + 1.5 V = 3.0 V
If the components are connected such
that there is only one path for the current through the components,
it is called a series circuit.
From Kirchhoff's Current Law (KCL) follows
that the same amount of current flows through all the components.