2.4.80 - Illumination effects on LDR resistance

Understand how changes of resistance with illumination may be modelled in terms of the number of conduction electrons and understand how to apply this model to LDRs.

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

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

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

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