Where is the electric field greatest in magnitude?

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Homework Help Overview

The discussion revolves around determining where the electric field is greatest in magnitude, with references to charge distribution and electric field properties. The context suggests a focus on concepts related to electric fields and their behavior in relation to charge density.

Discussion Character

  • Conceptual clarification, Assumption checking, Exploratory

Approaches and Questions Raised

  • Participants discuss the location of the greatest electric field magnitude, with some asserting it is at the tip due to charge density, while others suggest it may be at a different point based on vector equations and field properties. Questions arise about the relevance of specific equations and rules in understanding the electric field's behavior.

Discussion Status

The conversation is ongoing, with participants exploring different interpretations of where the electric field is strongest. Some guidance has been offered regarding the need for equations related to electric fields, and there is a recognition of the importance of charge density in this context.

Contextual Notes

Participants express uncertainty about which equations apply and how they relate to the problem at hand. There is a mention of a vector equation involving charge density, indicating that assumptions about the electric field's behavior are being questioned.

YMMMA
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Homework Statement


In the file

Homework Equations


No equations needed

The Attempt at a Solution


I answered it C. Since I learned that at the tip there are most of the charges. Therefore, it’s the point of the greatest E field magnitude. But another tutor told me that it is a circle, and because at D its like pulled inside, that’s the point of greatest magnitude. Which of these are correct?
 

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YMMMA said:

Homework Statement


In the file

Homework Equations


No equations needed

The Attempt at a Solution


I answered it C. Since I learned that at the tip there are most of the charges. Therefore, it’s the point of the greatest E field magnitude. But another tutor told me that it is a circle, and because at D its like pulled inside, that’s the point of greatest magnitude. Which of these are correct?
I believe C is correct, but you should be referring to the equation that would lead you to that conclusion. Can you post the relevant equation? :smile:
 
berkeman said:
I believe C is correct, but you should be referring to the equation that would lead you to that conclusion. Can you post the relevant equation? :smile:
I don’t know which equation you mean. But I guess you mean this
 

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YMMMA said:
I don’t know which equation you mean. But I guess you mean this
No, it's a vector equation involving the charge density and a property of the electric field...

Do some searching, and if you still have trouble finding it, you can click on the Spoiler below...

Look for the Differential form of Gauss' Law...
 
berkeman said:
No, it's a vector equation involving the charge density and a property of the electric field...

Do some searching, and if you still have trouble finding it, you can click on the Spoiler below...

Look for the Differential form of Gauss' Law...
I looked for this rule, but I don’t understand why would I use a rule to answer the question? Is it because it is more dense at the tip, so greater electric field?
 

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