What happens to electric field near and away from a neutral

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Discussion Overview

The discussion revolves around the behavior of electric field lines near and away from a neutral point created by two opposite charges (q1 and -q2). Participants explore the concept of a neutral point in the context of electric fields, equilibrium of test charges, and the implications of charge magnitudes.

Discussion Character

  • Exploratory, Technical explanation, Debate/contested

Main Points Raised

  • Some participants question the phrasing of the initial question, suggesting that a neutral point can be imagined for any point in space with distant pairs of charges.
  • There is a challenge regarding the existence of a neutral point with two oppositely charged particles, with some participants affirming that such a point can exist.
  • One participant defines the "neutral point" as a location where a test charge would be in equilibrium due to balanced forces from the two charges.
  • Another participant notes that the electric field is zero at the neutral point only if the charges have different magnitudes and that the behavior of the field when moving away from this point depends on the direction of movement.

Areas of Agreement / Disagreement

Participants express differing views on the existence and definition of a neutral point, and there is no consensus on the implications of moving away from this point in relation to the electric field.

Contextual Notes

There are unresolved assumptions regarding the conditions under which a neutral point exists and the specific configurations of the charges involved.

Elle885
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What happens to the electric field lines near and away from a neutral point. The neutral point of two opposite charges.
(q1 and -q2)
 
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I think you need to phrase your question better. For any point in space, I can always imagine an infinite number of distant pairs of charges q1 q2 for which that point is the neutral point.
 
anorlunda said:
I think you need to phrase your question better. For any point in space, I can always imagine an infinite number of distant pairs of charges q1 q2 for which that point is the neutral point.
The situation is that there are two point charges in vacuum and they have a neutral point and all three are collinear. What would happen to the electric field around that neutral point.
 
Can you even have a neutral point with 2 oppositely charged particles?
 
OP (Elle885)

What do you call "neutral point" here?
 
nasu said:
OP (Elle885)

What do you call "neutral point" here?
It is the point on which if u put a test charge it would be in equilibrium i.e. the attractive and repulsive forces would balance each other.
 
Well, then the field is zero at this point. For two opposite charges you have such points only if they have different magnitudes.
What happens when you go away form such a point depends on how you do it. In what direction you move away.
 

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