Question

Which kind of material cannot be charged with static electricity

Answer 1

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Gray concluded that insulators were materials such as silk or glass that could hold a static electric charge but could not conduct it from place to place.

Conductors were materials such as metal or water which could not hold a static charge, but did conduct it.

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Answer 2

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Gray concluded that insulators were materials such as silk or glass that could hold a static electric charge but could not conduct it from place to place.

Conductors were materials such as metal or water which could not hold a static charge, but did conduct it.