Criteria
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Conductors
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Insulators
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Definition
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Substances which allow electricity to pass through them are called conductors.
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Substances which do not allow electricity to pass through them are called insulators.
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Electron Movement
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Free movement
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None or very low
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Charge transfer
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Charge gets distributed over whole body once it is transferred to a conductor.
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Charge stays at one place when transferred to an insulator.
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Examples
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Human body, Metals, water
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Plastic, wood, glass
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- Semiconductors offer resistance to movement of charges which is between conductors and non-conductors.
- The process where excess charge from a body or object goes to ground, by touching the charge carrying conducting body to earth is called earthing or grounding.
