Conductors are materials that allow the flow of electric current, whereas insulators do not. While conductors and insulators are different in that respect, their similarity is in their makeup of atoms. It is these atoms ... More » Science Physics Electricity

Oil, fur, silk, wool, rubber, glass, plastic, wood, paper, wax and ebonite are good insulators. Insulators are substances with tightly bound outer electrons and heavily resist the flow of electrons. Most nonmetals are cl... More » Home & Garden Heating & Cooling

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 » Home & Garden Home Maintenance Building Materials
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In general, metals make good electrical conductors while nonmetallic solids are good insulators, or materials that don't conduct electricity well. Electrolyte solutions, such as salt water, are also good conductors of el... More » Science Physics Electricity

Semiconductors help to transmit conductivity between insulators and conductors. They can be in natural forms or may be a manufactured electronic. More » Science Physics Electricity

Resistors utilize both conductive and non-conductive materials in order to restrict or limit the flow of electrical current being passed through them. Typically constructed using metal alloys as well as carbon or ceramic... More » Science Physics Electricity

Glass, paper, Teflon and rubber are good insulators of electricity. An insulator is a substance that allows very little electric current to flow through it. There is no perfect insulator, but materials that offer a high ... More » Science Physics Electricity