Electrical Materials Conductor-Semiconductor-Insulator

Electrical Materials: Conductor-Semiconductor-Insulator

Electrical Materials divided into three major parts:

                   1.Conductor 2. Semiconductor 2. Insulator

      

    1. Conductor:

     a. Conductor generated by metallic bonds. These bonds are based on the structure of the metal positive ions surrounded by a cloud of electrons.

     b. Conductors have a positive temperature coefficient of resistance. Resistance will increase with increasing      temperature.

     c. Conductors are used for carrying current in circuits.

    2. Semiconductors:

      a. Semiconductors are created by covalent bonds.

      b. Semiconductors have a negative temperature coefficient of resistance. Their resistance decreased with increasing temperature.

      c.Semiconductors used in the manufacture of electronic devices. [For example, crystal diodes, etc Transistor]

    3. Insulators:

     a. Insulators are mainly covalent compounds.

     b. I have isolated a negative temperature coefficient of resistance, their resistance decreases with increasing temperature.

     c. Insulators are used to limit the current path you want.