Product details

The potentiometer

The potentiometer

Item no.: P1373100

Difficulty Expenditure of Time print
PHYWE SYSTEME GMBH
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Principle

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.

Benefits

  • 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

Tasks

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.

 

Document     Filesize
p1373100e.pdf Experiment guide, English 402.67 KB