Why D.C(Direct Current) flow through semi-conductor and insulator and A.C(Alternating Current) doesn’t?

Semiconductors are materials which conduct electricity only in one direction, as a result of their chemical properties. In the chemical elements which comprised the semiconductors the gap between non-conducting and conducting band is less than of  insulators, but much bigger than of conductors. That's why in their pure state their conductivity is relatively low. The examples of those elements are Silicon, Germanium, and some other elements with valence of  4. only direct current is used with all semiconductors except for diodes (transistors etc) used for rectification as to insulators, they are meant to insulate not conduct .

By Zehr E Hilahil with No comments