Current in metal rod of gold leaf electroscope -- is it there?

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Discussion Overview

The discussion revolves around the concept of current in a gold leaf electroscope, specifically questioning whether the flow of negative charge (electrons) constitutes a current during a particular time frame in a referenced video. The scope includes theoretical considerations of electric current and charge movement.

Discussion Character

  • Exploratory, Technical explanation, Conceptual clarification, Debate/contested

Main Points Raised

  • One participant questions whether the flow of electrons in the electroscope leads to a current.
  • Another participant asserts that current flows when charges move from one point to another, referencing the relationship I = dQ/dt.
  • A follow-up inquiry seeks clarification on when the charges stabilize and stop flowing.
  • Participants discuss the definition of electric current, emphasizing that current ceases when no charge is flowing.
  • It is noted that once charges reach a minimum energy configuration, the current has stopped.

Areas of Agreement / Disagreement

Participants generally agree on the definition of current and the conditions under which it ceases, but there is some debate regarding the timing and implications of charge movement in the electroscope.

Contextual Notes

The discussion does not resolve the timing of when charges stabilize or the specific conditions under which current is defined, leaving some assumptions and definitions open to interpretation.

gracy
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In gold leaf electroscope
from the following video I have a doubt

From time 2:11 to 2:14 flow of negative charge i.e flow of electron won't it cause current?
 
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Simple rule, which always applies. If charges move from A to B then a current flows.
Of course, once the charges have stabilised on the electroscope, no more current will flow. (I = dQ/dt)
 
sophiecentaur said:
once the charges have stabilised on the electroscope
Means ?When ?once the flow of negative charge i.e flow of electron is stopped.
 
Well, isn't that the definition of an electric current? :smile:
If no charge is flowing from place to place, is there any current?
 
sophiecentaur said:
If no charge is flowing from place to place, is there any current?
No.
 
So that is your answer. Once the charges have all spread out to the minimum energy configuration (in nanoseconds) the current has stopped.
 

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