The discussion revolves around finding the neutral point in a system of two point charges, specifically a positive charge of +2nC and a negative charge of -3nC, separated by a distance of 2.0m. The participants are exploring the conditions under which the electric field intensity is zero.
The conversation is ongoing, with participants sharing insights about the setup and the implications of charge interactions. Some have offered guidance on visualizing the problem and the relationships between the distances, while others express confusion and seek clarification on specific points.
There is a suggestion that there may be two neutral points, leading to a quadratic equation, although this has not been fully explored. Participants are also questioning the implications of charge attraction and repulsion in determining the location of the neutral point.
i don't have a solution for now since i can't figure out how to solve for d1 and d2
rize said:d1 is the distance of q1 from the neutral point , d2 is the distance of q2 from the neutral point
* q1-------------------------------q2 * |<----------->|
dkkrizka said:Just try to look at it like a 1D problem. Along a line joining the two charges there will be a point where the sum of the fields is 0. Also using rules of repulsion/attraction for charges, you can figure out that the point will NOT be between the two charges. So the distance from one charge is d1, and the distance from the second charge is 2+d1.
Drawing a picture always helps. :)
Just use your rules of repulsion/attraction between two charges. If the test change was placed between the two charges in the question, The negative would attract it left and the positive would push it away, towards the left. No matter how you add them, it would result in a vector pointing left.rize said:how can it happen that it won't be between the charges?
rize said:https://www.physicsforums.com/latex_images/16/1629068-1.png
why is it d+2.. ? where did the 2 come from?