Principle

In connection with Ohm’s Law, the students have already learned
that metallic conductors generally have a resistance which
increases with increasing temperature.
Now, they should discover that the opposite is true for NTC
resistors (Negative Temperature
Coefficient). The first experiment does not just
serve as an introduction to this topic. It is also useful in
demonstrating the terms self-heating (in the first experiment) and
external heating (in the second experiment). The second experiment
should be used to confirm these concepts.

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

Does the resistance of certain components decrease with an
increase in temperature?

Determine whether and how the resistance varies depending on
temperature using an NTC resistor.