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Conductors vs. Insulators

Conductors vs. Insulators. Insulators:. Electrons are tightly bound. No tendency for electrons to move into other areas. glass. plastic. Examples: . rubber. Conductors. Electrons are held ‘loosely’. Charge immediately spreads over entire surface. Example:. metals. Semiconductors.

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Conductors vs. Insulators

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  1. Conductors vs. Insulators Insulators: Electrons are tightly bound No tendency for electrons to move into other areas glass plastic Examples: rubber

  2. Conductors Electrons are held ‘loosely’ Charge immediately spreads over entire surface. Example: metals

  3. Semiconductors These are insulators in pure form but increase tremendously in conductivity when even a single impurity is added. germanium Examples: silicon

  4. Superconductors At temperatures near absolute zero, certain metals will acquire infinite conductivity. -273 degrees Celsius! Add 273 How would You go from Celsius to Kelvin? Measured in Kelvins Who remembers what absolute zero is? They have found some nonmetallic compounds which are superconductors at ‘high’ temps. They considered 100K to be high! What is 100K in Celsius? -173 Celsius

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