Experiment with an Electroscope, a Charged Rod and my hand

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SUMMARY

This discussion centers on the behavior of an electroscope when interacting with a positively charged rod. When the positively charged rod approaches the electroscope, it induces a negative charge in the conductor sphere, causing the leaves to repel each other. Upon touching the positively charged rod with a hand, which grounds the rod, the electroscope ultimately retains a negative charge. This results in the leaves of the electroscope being negatively charged and repelling each other after contact.

PREREQUISITES
  • Understanding of electrostatics and charge interactions
  • Familiarity with the principles of grounding in electrical circuits
  • Knowledge of how an electroscope functions as a charge detector
  • Basic concepts of charge induction and separation
NEXT STEPS
  • Research the principles of electrostatic induction and its applications
  • Explore the concept of grounding in electrical systems
  • Learn about the different types of electroscopes and their uses
  • Investigate the behavior of charged objects in electrostatic fields
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Students of physics, educators demonstrating electrostatic principles, and anyone interested in the practical applications of electrostatics in experiments.

MatinSAR
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Homework Statement
We bring a positively charged rod closer to the electroscope what happens if we touch the positively charged rod with our hands and then move the hand and rod away?
Relevant Equations
Electrostatics
I know that if we bring a positively charged rod closer to the electroscope, charges of electroscope are separated and the leaves of the electroscope get away from each other. but what happens if we touch the positively charged rod with our hands and then move the hand and rod away?
 
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What do you think happens ? Bear in mind that "touch the positively charged rod" probably means you've grounded the rod.
 
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hmmm27 said:
What do you think happens ? Bear in mind that "touch the positively charged rod" probably means you've grounded the rod.
Thank you.
I think electroscope charge will be - in the end.
 
Why ?
 
hmmm27 said:
Why ?
Because at first, the rod approaches the electroscope with a positive charge, so the conductor sphere has a negative charge and the leaves have a positive charge. when we touch the rod the leaves are repelled and negatively charged, so the distance between them is reduced and after colliding with each other, they are charged with the same charges (both negative charge) and repel each other.
 

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