Instructions

21
Additional experiment
The test device is also suitable for testing electrical compo-
nents. The resistors in the package conduct the current to
different degrees. An LED will only conduct in one direction.
And you can check if a light bulb is still working or has already
burned out.
10 red and green light
The aim of this experiment is to compare the brightness of
different coloured LEDs. A red LED should be connected in
series to the green LED. The same current flows through both,
as in Experiment 5, when two white LEDs were connected
in series. But which seem brighter, the red or the green LED?
You can once again choose the brightness levels by turning
on S1 or S2.
Additional experiment
Both LEDs should shine on white paper. At the points
where the coloured circles overlap, the mixed colour
should appear yellow.