Students learn how to build a simple electrical circuit and observe the effects of electron flow.
iPods, fridges, lights and televisions work because of electric current—moving electrons. In order to create an electric current we need two things: an energy source (a battery) and a circular path for the electrons to travel on (a complete circuit).
One Ampere (Amp) on the multimeter equals 6 billion billion (6,000,000,000,000,000,000) electrons flowing through the circuit every second. Wall sockets provide about 15 Amps of current in households (90 billion billion electrons per second). When we get too close to a power wire, we create a path for the electrons to flow through us to the ground.