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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