Insulators
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Other elements offer high resistance to electrical current passing through them. These elements are known as insulators.
- Insulators have five to eight electrons in their valance ring (outer orbit).
Examples of insulators are: glass, wood, most plastics and rubber, air, and pure water. Insulators will still allow current to pass through them, however it takes a great amount of electromotive force to cause this to happen. For example, lightning is electrical current through the air.
Copyright 2008,
by the Contributing Authors.
Cite/attribute Resource.
jfrank. (2008, February 05). Insulators. Retrieved November 22, 2009, from WSU Web site: http://ocw.weber.edu/automotive-technology/ausv-1320-automotive-electronics/1electricalfundamentals/insulators.
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