Free electrons (charge carriers)

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

Definition

Electrons that have broken free from their atoms and can move through a material to conduct an electric current.

Exam Context

Free electrons (charge carriers) 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

Inverse relationship LDR (Light Dependent Resistor)Non-linear relationship Non-ohmic conductor

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