anonymous
  • anonymous
which of the following is a good insulator? a. wire b. doorknob c. plastic d. nickel
Physics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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theEric
  • theEric
To be sure, you'd have to know what the stuff is made of and know how much energy the electrons of the atoms in that substance will require to move! If they take a lot of energy to move, then you call the material an insulator. That's because electrical current won't flow unless there's a lot of energy involved. Wire is easy to rule out if we're talking metal wire. Metals tend to let electrons out pretty easily. A doorknob will probably be made of metal, so same thing! Plastics are usually insulators. Probably all plastics around the house are insulators! Nickel is another metal, so probably a pretty good conductor.
anonymous
  • anonymous
Question is vague but the response is terrific..
theEric
  • theEric
Thank you @haridas_mandal! :D

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anonymous
  • anonymous
thanks it was plastic:)
theEric
  • theEric
Thanks for letting us know :) Take care!!

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