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1 vote
If you are looking for an insulator you are looking for a material that will

allow the flow of electrons.
inhibit the flow of neutrons.
allow the flow of protons.
inhibit the flow of electrons.

2 Answers

3 votes
inhabit flow of electrons i think 
User Jan Jungnickel
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2 votes
Electricity is the controlled flow of electrons. They are made to travel in the same direction at the same time. If you have an insulator, it stops or severely inhibits the flow of electrons. Such a device is found on telephone poles. Those are made of glass like materials.
User Savante
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