The potentiometer with Cobra SMARTsense

Principle

Potentiometers are hidden behind many knobs on electrical devices. A potentiometer acts as a voltage divider. It corresponds to a series connection of two variable resistors with center tap, whose resistance values added always have the same sum.

Benefits

• Particularly comprehensible and didactically prepared description of the experiment (reference to everyday life etc.) incl. protocol questions.
• Future-oriented teaching: Integration into digital science lessons with tablets or smartphones.
• Increased motivation among students through use of the intuitive measureAPP.
• Increased media literacy.
• No additional cable connections between the modules necessary - clearer and faster set-up.
• contact safety due to puzzle-like interlocking building blocks
• Hard gold-plated, corrosion-resistant contacts
• Double learning success: electrical circuit diagram visible on the upper side and real components on the lower side

Tasks

Investigate the behavior of a potentiometer using a functional model and a rotary potentiometer as commonly used in engineering.

Learning Objectives

The students should understand the principle of a potentiometer using a model and experience its function in a vivid manner using a technical potentiometer.