What would the final charge on the rod be?

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Homework Help Overview

The discussion revolves around the final charge on a glass rod after it touches another insulator, with an initial charge of 5.4 x 108 C. Participants are exploring the principles of charge sharing and conservation in electrostatics.

Discussion Character

  • Conceptual clarification, Assumption checking

Approaches and Questions Raised

  • Participants inquire about the number of objects involved in sharing the charge and discuss the conservation of charge principle. There is an exploration of how the charge is divided between the glass rod and the insulator.

Discussion Status

Some participants have provided insights into the charge sharing process, suggesting that the total charge is divided equally between the two objects. However, there is still uncertainty regarding the reasoning behind this conclusion and the application of conservation laws.

Contextual Notes

Participants are navigating the implications of charge conservation and the specifics of how charge is distributed between the glass rod and the insulator, with some assumptions about equal sharing being questioned.

pandamonium786
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I had a question.

If a glass rod, with a charge of 5.4x108 C touched another insulator so that all of the excess electrons are shared equally. What would the final charge on the rod be?

I don't understand how to reach the answer of 2.7 x108 C.

Thanks in advance. :)
 
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How many objects are sharing the total charge?
 
Bystander said:
How many objects are sharing the total charge?

2 objects. The glass rod and the insulator.
 
Have you run into any conservation law regarding charge?
 
Bystander said:
Have you run into any conservation law regarding charge?

The way I got the answer just now is by making each rod have half the excess electrons. So dividing 5.4 by 2 to = 2.7 x 10^8 C final charge.
I got the answer but i don't know why i am right.
 
pandamonium786 said:
why i am right
Charge is a conserved quantity, one of seven such.
 

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