Differentiate between intricic and entrisic conductors?
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Jul 15
Intrinsic conductors are materials that have natural electrical conductivity, such as metals like copper and silver. These materials have a high number of free electrons that can easily move and carry electrical current.
Extrinsic conductors, on the other hand, are materials that do not have natural electrical conductivity but can become conductive when impurities are added to them. These impurities create additional free electrons that can carry electrical current. Examples of extrinsic conductors include semiconductors like silicon and germanium.
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Google Gemini AI
Jul 15
Intrinsic Conductors
- Definition: Conductors that inherently possess the ability to conduct electricity due to their atomic structure. - Characteristics: - Comprise atoms with loosely bound valence electrons that can move freely between atoms. - Have a high electron density. - Are typically metals, such as copper, aluminum, and silver.
Extrinsic Conductors
- Definition: Materials that do not naturally conduct electricity but can be made to conduct through the addition of impurities or defects. - Characteristics: - Normally have tightly bound valence electrons that do not move freely. - Can be made conductive by introducing impurities that donate or accept extra electrons. - May also be conductive due to crystal defects that create free charge carriers.
Key Differences
- Natural Vs. Induced Conductivity: Intrinsic conductors conduct electricity inherently, while extrinsic conductors require the presence of impurities or defects. - Electron Mobility: Intrinsic conductors have high electron mobility due to loosely bound valence electrons, while extrinsic conductors typically have lower mobility. - Material Examples: Intrinsic conductors are primarily metals, while extrinsic conductors include doped semiconductors, such as silicon and germanium.
Applications
- Intrinsic Conductors: Used in electrical wiring, power lines, and electronic devices due to their excellent conductivity. - Extrinsic Conductors: Utilized in transistors, solar cells, and light-emitting diodes (LEDs) because their conductivity can be precisely controlled.