Wednesday, 19 December 2012

electric charge- CONDUCTORS AND ISULATOR


conductor and insulator

the behavior of object determine whether it is conductor or insulator, this characteristic is a very important on how we want to use this material in electric component. such as copper act as conductor, we use it in electrical wiring since the invention of the electromagnet and the telegraph in the 1820s ( wikipedia) . so it has been use a very long time ago. then we also use plastic as an insulator of the electrical wire. read more to know more. :)

conductor : 
materials that have excess charge freely flows. thus, it can conduct electricity. the excellent conductor is metal.
This conductor can transfer the electrical charge through free movement of electrons , so below shown the picture of a conductor. 



insulator : 
materials which excess charge does not move. It stay on one place. there are few if any free electrons in insulator  . Most non-metals are insulator. In short ,
because of insulator doesn't transfer in electrical charge it is often use in electrical experiment and demonstration. such as it is use for moving conductor in lab and also we using a lab coat, it also an insulator material. 

the example of plastic


and this is an example of demonstration on how conductor and insulator work. enjoy !! :) . this experiment will show you whether a material is conductor or insulator, it is a simple demonstration, such a conductor can transfer electrical charge so it will light up the lamp and insulator that doesn't allow the electrical charge will not lighten up the lamp. can you identify which is insulator or conductor? let's watch the video. 




Semi-conductors : 
like silicon used in computer chips, have electrical conductivity between that of conductors and insulators. The application of semi conductor is in electronic component such as LED (light emmision diode) , transistor , and many more. 


semi-conductor application in IC (integrated circuit) manufacturing

superconductor : materials that have excellent conductor. in other word it is a material that exhibits no resistance to the flow of an electric current. Once a flow of electrons is started in such a material, that flow continues forever and ever. subhanallah !



A small cube magnet hovering over a nitrogen-cooled specimen of a superconducting ceramic demonstrates the Meissner effect.  Because the test is so distinctive it is used as a test for identifying superconducting materials.

That's all on this post , thank you for reading !!! read more learn more. barakallah hu fika.


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