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

In summary, the flow of negative charge or electrons in a gold leaf electroscope will cause an electric current, according to the simple rule that charges moving from one place to another results in a current. Once the charges have stabilized on the electroscope, no more current will flow. This means that when the flow of negative charge or electrons is stopped, the current also stops. This is the definition of an electric current. If there is no charge flowing from place to place, there is no current. Once the charges have spread out to their minimum energy configuration, which happens in nanoseconds, the current has stopped.
  • #1
gracy
2,486
83
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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  • #2
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)
 
  • #3
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.
 
  • #4
Well, isn't that the definition of an electric current? :smile:
If no charge is flowing from place to place, is there any current?
 
  • #5
sophiecentaur said:
If no charge is flowing from place to place, is there any current?
No.
 
  • #6
So that is your answer. Once the charges have all spread out to the minimum energy configuration (in nanoseconds) the current has stopped.
 

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

1. What is the significance of current in a metal rod of gold leaf electroscope?

The presence of current in a metal rod of gold leaf electroscope indicates the flow of electric charge. This is important because it allows us to measure the amount of charge and understand the behavior of electric fields.

2. How can the current in a metal rod of gold leaf electroscope be measured?

The current in a metal rod of gold leaf electroscope can be measured using an ammeter, which is a device designed to measure electric current. The ammeter is connected in series with the metal rod and measures the amount of current passing through it.

3. What factors affect the current in a metal rod of gold leaf electroscope?

The current in a metal rod of gold leaf electroscope can be affected by several factors, such as the voltage applied to the electroscope, the material and thickness of the rod, and the surrounding electric field. Changes in these factors can cause fluctuations in the current.

4. What is the maximum current that can be detected in a metal rod of gold leaf electroscope?

The maximum current that can be detected in a metal rod of gold leaf electroscope depends on the sensitivity of the measuring instrument used and the resistance of the metal rod. Generally, the current is very small in these types of electroscope, ranging from microamps to nanoamps.

5. How can the current in a metal rod of gold leaf electroscope be used in experiments or practical applications?

The current in a metal rod of gold leaf electroscope can be used in various experiments and practical applications, such as measuring the amount of charge on an object, detecting the presence of an electric field, and studying the behavior of electric currents. It is also commonly used in electrostatic experiments and demonstrations.

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