LDR (Light Dependent Resistor)

Key term for Edexcel GCSE Physics, used in Component Characteristics.

Definition

A light-sensitive non-ohmic electrical component whose resistance changes depending on the intensity of light falling on it.

Exam Context

LDR (Light Dependent Resistor) appears in Edexcel GCSE Physics revision content for Electricity and circuits, especially Component Characteristics and LDR Resistance.

Electricity and circuits Component Characteristics LDR Resistance

Found in Revision Notes

Electricity and circuits

LDR Resistance

Component Characteristics • LDR Resistance

Revise note

Related Key Terms

Free electrons (charge carriers)Inverse relationship Non-linear relationship Non-ohmic conductor

Revise Physics with GradeGen.AI

Create a free account to access Edexcel GCSE Physics revision notes, track progress, and practise related key terms.