Properties of Metals » Electric Conductor http://propertiesofmetals.com Physical or Mechanical Properties of Metals Mon, 11 Jan 2010 11:22:46 +0000 en hourly 1 http://wordpress.org/?v=3.3.2 Electric Conductor http://propertiesofmetals.com/physical-properties-of-metals/electric-conductor/ http://propertiesofmetals.com/physical-properties-of-metals/electric-conductor/#comments Mon, 07 Sep 2009 07:35:06 +0000 admin http://propertiesofmetals.com/?p=14
  • Heat Conductor
  • Metal Shines when Polished
  • Hardness
    • ]]>     Because of the free electrons that are present in the metals, it becomes a good electrical conductor. This is why this is one of the Properties of metals:


    electric conductor physical properties of metals


    There are two effects that scientists have discovered:


    Peltier effect

    • When an electric current passes through a junction of 2 different metals, Heat is evolved at the upper junction and absorbed at the lower junction. One such product is a Peltier Cooler or heater / thermoelectric heat pump, which transfers heat from a side to another.


    Thomson effect

    • The other is an effect discovered by William Thomson, which describes a electric current is produced in the conductor with a temperature gradient which heats or cools. The reason for this was that the temperature difference between the 2 points will absorb or emit heat.


    Related posts:

    1. Heat Conductor
    2. Metal Shines when Polished
    3. Hardness

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