Glass is not a good conductor of electricity and is classified as an insulator not a conductor. An electrical insulator is any material that does not allow electrons and electric charge to flow freely. These materials ma... More »

In general, metals like copper and aluminum are the best conductors of electricity. Good conductors are able to allow electrons to easily flow through. More »

In general, metals make good conductors of electricity. These include copper, gold, silver and aluminum. Copper is a common conductor of electricity used in industrial applications because it is inexpensive to acquire, e... More »

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Silicon is typically a very poor conductor of electricity and often considered an insulator. However, a process called doping introduces a small amount of other material into the crystal structure to convert silicon from... More »

Glass is a good electrical insulator because the electrons in the glass are tightly bound to the atoms and do not transfer easily, thus keeping electricity from moving through the glass. Conversely, good electrical condu... More »

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Wood is classified as an insulator and does not readily conduct electricity, but when wet, wood does have the potential to conduct electricity. Insulators resist the flow of electricity, as stated by the Occupational Saf... More »

A conductor conducts electricity, and an insulator, or a dielectric, does not. A semiconductor falls between the two extremes and conducts less electricity than a conductor but more than an insulator. Siemens per meter (... More »