a prjector that you make a semi circle with it
semi conductor
Lead is a metal and is considered a good conductor of electricity. It is not a semiconductor or insulator.
Glass is an insulator. It does not conduct electricity because its structure lacks free electrons that can move easily to carry an electric current.
some semiconductors have comparatively low resistivity, and this is due to their containing electrically active impurities with energy-levels near a band edge. Others have very high resistivity and this is due to their containing a predominance of impurities with levels far from the band edges, that is, far compared with the thermal energy kT. These latter materials are often referred to as insulators, but since they can carry electronic currents we prefer to introduce the term 'semi-insulator' to describe them.
semi conductor
Copper is a conductor.
A semi conductor is not a good conductor or a good insulator.
semi conductor
Semi conductors will pass electricity through with some restriction. Insulator will not pass electricity
Lead is a metal and is considered a good conductor of electricity. It is not a semiconductor or insulator.
Glass is an insulator. It does not conduct electricity because its structure lacks free electrons that can move easily to carry an electric current.
some semiconductors have comparatively low resistivity, and this is due to their containing electrically active impurities with energy-levels near a band edge. Others have very high resistivity and this is due to their containing a predominance of impurities with levels far from the band edges, that is, far compared with the thermal energy kT. These latter materials are often referred to as insulators, but since they can carry electronic currents we prefer to introduce the term 'semi-insulator' to describe them.
In general, yes, silicone is thought of as an insulator. It can be engineered to conduct to a degree, but is generally not a conductor of electric current. It (silicone) is often used as an insulating medium.
semi conductor
Polystyrene is considered an insulator because it is a poor conductor of electricity. It has high resistance to the flow of electric current due to the lack of free-flowing electrons in its structure.
Cotton wool is not a conductor or an insulator it is a semi conductor. It is sort of in the middle, electrons can travel through cotton wool but not as good as silver, bronze, metal and so on.
Silver is a conductor of electricity. It has low resistivity, allowing electric current to flow easily through it compared to insulators like rubber or semi-conductors like silicon.