The potentiometer

Article no. P1373100 | Type: Experiments

10 Minutes
10 Minutes
grades 7-10


The students should first recognize from the model that a given voltage can be divided with a potentiometer (voltage divider), and that the dividing function is based on the law for the series connection of resistances U1/RU2/R = ... = Un/Rn. For a homogenous wire, we accordingly have l1/Rl2/R = ... = ln/Rn. The potentiometer must hereby not be under load. The students should then use a technical potentiometer, so that they can clearly understand how it functions by working with it.


  • No additional cable connections between the building blocks needed - clear arragned and quick setup
  • Contact saftey due to puzzle blocks system
  • Corrosion-free gold plated contacts
  • Doubled earning sucess: Electric circuit diagram on top, real components can be seen unterside


How does a potentiometer function?

Determine the working principle of a potentiometer from a model of a potentiometer and subsequently use a technical potentiometer to vary the brightness of a filament lamp.


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(en) Experiment guide
p1373100e .pdf
File size 0.46 Mb
(de) Versuchsbeschreibung
p1373100_de .pdf
File size 1.61 Mb
(es) Versuchsbeschreibung
p1373100_es .pdf
File size 1.55 Mb
(ru) Versuchsbeschreibung
p1373100_ru .pdf
File size 1.72 Mb
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