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Table Of Contents  CertiGuide to A+ (Core Hardware)
 9  Chapter 0000:  The Start of the PC
      9  V  Electricity

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Electrons Unleashed
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Completing a Circuit
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Insulators and Conductors

Some materials hold onto their electrons very tightly and resist giving up their electrons. These materials are known as insulators.

Types of Insulators

Glass, rubber, wood, and plastic are good insulators.


Other materials give up their electrons very easily. These materials are known as conductors.

Types of Conductors

Copper, silver, gold, aluminum, and iron are good conductors.



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Electrons Unleashed
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Completing a Circuit
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