2.4.79 - Temperature effects on resistance

Understand how changes of resistance with temperature may be modelled in terms of lattice vibrations and number of conduction electrons and understand how to apply this model to metallic conductors and negative temperature coefficient thermistors.

Use - temperature effects on resistance to connect the rule to the data and decision in the question.

This matters because - temperature effects on resistance determines what can be inferred or chosen; begin with the stated conditions and keep the conclusion tied to the evidence.

Example: apply - temperature effects on resistance to one small, clearly defined case, show the key step or comparison, and explain the result in words.

Boundary: - Temperature effects on resistance is not a universal recommendation. Check the syllabus scope, assumptions, units and the limits of the evidence before generalising.