Classification of materials in terms of resistivity

 Classification of Materials by Resistivity


Materials can be classified into three main categories based on their resistivity:


1. Conductors: Low resistivity (e.g., copper, aluminum, silver)

    - Allow electric current to flow easily


2. Insulators: High resistivity (e.g., rubber, glass, plastic)

    - Block electric current flow


3. Semiconductors: Intermediate resistivity (e.g., silicon, germanium)

    - Can control electric current flow


Applications:


1. Conductors: Wiring, electronics

2. Insulators: Electrical insulation, safety

3. Semiconductors: Electronics, solar panels, microchips

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