Finding Neutral Points in a Charged System

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Homework Help Overview

The problem involves finding neutral points in a system with a charged line and a charged sheet, specifically where an alpha particle would experience no net force. The context is rooted in electrostatics and electric fields.

Discussion Character

  • Exploratory, Conceptual clarification, Assumption checking

Approaches and Questions Raised

  • Participants discuss the relationship between electric force and charge density, with one participant questioning the original poster's understanding of electricity concepts. There is mention of electric flux and Gauss's law as relevant topics.

Discussion Status

The discussion is in an early stage, with participants seeking to clarify foundational concepts before progressing. Some guidance has been offered regarding the relevance of electric force and charge density.

Contextual Notes

The original poster expresses uncertainty about how to begin the problem, indicating a potential gap in foundational knowledge related to electric fields and forces.

jimbo71
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Homework Statement


A long line carrying a uniform linear charge density + 50.0*10^-6C/m runs parallel to and 10.0 cm from the surface of a large, flat plastic sheet that has a uniform surface charge density of - 100*10^-6C/m^2

Find the location of all points where an alpha particle would feel no force due to this arrangement of charged objects.
L= ? m from the line

Are they above the line or between the line and the sheet?


Homework Equations





The Attempt at a Solution


I have no idea where to start. please help
 
Physics news on Phys.org
Do you know anything about electric force? And how charge density is related to the total charge?

Basically, what have you covered concerning electricity so far?
 
electric flux for uniform electric field and nonuniform electric field. we are begging to discuss gauss's law and guassian surfaces
 
i need help??!?
 

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