What Happens When Paper and Aluminum Foil Are Placed on a Conductor?

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Discussion Overview

The discussion revolves around the effects of placing paper and aluminum foil on a conductor when exposed to a negatively charged Styrofoam plate. Participants explore the concepts of attraction and repulsion in relation to conductors and insulators, and the expected outcomes of their interactions.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested
  • Experimental/applied

Main Points Raised

  • One participant notes that attraction occurs with paper on an insulator and repulsion with aluminum foil on an insulator, questioning the outcomes when both materials are placed on a conductor.
  • Another participant encourages conducting personal experiments to gain insights rather than seeking direct answers.
  • A participant reports that their experiments yielded the same results for both materials, expressing confusion about the expected differences based on prior research.
  • Another participant seeks clarification on how the presence of a conductor or insulator affects the behavior of the paper and aluminum foil.
  • One participant proposes that both materials would attract due to the conductive material underneath absorbing electrons, leading to positive charges on both the paper and foil.

Areas of Agreement / Disagreement

Participants express varying levels of understanding and confusion regarding the effects of conductors versus insulators, with no consensus reached on the expected outcomes of the experiments.

Contextual Notes

Some participants mention conducting experiments but report conflicting results, indicating potential limitations in their understanding or execution. The discussion reflects uncertainty about the underlying principles governing the interactions.

cvc121
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If a negatively charged Styrofoam plate is brought towards pieces of paper placed on an insulator (ex. a piece of paper), attraction occurs. Repulsion occurs if pieces of aluminum foil, which is a conductor, are placed on an insulator. What would occur if the pieces of paper and aluminum foil were placed on a conductor, such as a sheet of aluminum foil? Would the pieces of paper still be attracted to the plate while aluminum pieces repelled? Would the strength of attraction or repulsion differ?
 
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cvc121 said:
If a negatively charged Styrofoam plate is brought towards pieces of paper placed on an insulator (ex. a piece of paper), attraction occurs. Repulsion occurs if pieces of aluminum foil, which is a conductor, are placed on an insulator. What would occur if the pieces of paper and aluminum foil were placed on a conductor, such as a sheet of aluminum foil? Would the pieces of paper still be attracted to the plate while aluminum pieces repelled? Would the strength of attraction or repulsion differ?

You have a great set of questions there and the first thing you should be doing is some basic
experiments of your own :smile:
This would be very easy to do at home and you would learn a whole lot more than if some one just handed you the answers :wink:

so give it a try and come back and tell us your results

Dave
 
Thanks for the reply. I have tried the experiments but yield the exact same results for both. However, it is to my understanding that there should be an observable difference. I have done lots of research regarding the topic but still cannot come up with a valid answer.
 
Would anyone be able to clarify? I am still confused as to why placing a conductor or insulator below the pieces of paper or aluminum foil would make a difference. I can't get it to work.
 
Am I on the right track in saying that both the paper and aluminum foil would attract because the the conductive material underneath would take in the electrons resulting in positive charges to both the paper and the foil?
 

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