How Do You Locate the Neutral Point Between Multiple Charges on a Line?

AI Thread Summary
To locate the neutral point between multiple charges on a line, one can analyze the electric potential created by each charge at various positions. The neutral point occurs where the total electric potential is zero, which can be determined by setting up an equation based on the contributions of each charge. Understanding how the electric potential from a point charge behaves and how it changes with additional charges is crucial. The discussion also highlights the importance of knowing the educational background of participants to tailor explanations effectively. Ultimately, identifying the neutral point involves mathematical analysis of the potential functions involved.
Samurai44
Messages
57
Reaction score
0
Hello , If i was given two or three charges separated , and they all lie on the same straight line ... how can I identify the neutral point ?

* Take any value for their separation , their charges and sign if you want to give an example ,, just a general question
 
Physics news on Phys.org
How about writing down the potential as a function of the position and minimising/maximising it?
 
Orodruin said:
How about writing down the potential as a function of the position and minimising/maximising it?
sorry but didnt understand you
 
Try to answer the following: What is the electric potential from a point charge? How does the electric potential change when you add another charge? What is the defining property of a stable point?
 
Samurai44 said:
sorry but didnt understand you

What level of education and mathematics are you at? (It always helps to say this at the beginning.)
 
jtbell said:
What level of education and mathematics are you at? (It always helps to say this at the beginning.)
grade 12 (senior)
 
Thread 'Motional EMF in Faraday disc, co-rotating magnet axial mean flux'

Thread 'Motional EMF in Faraday disc, co-rotating magnet axial mean flux'

So here is the motional EMF formula. Now I understand the standard Faraday paradox that an axis symmetric field source (like a speaker motor ring magnet) has a magnetic field that is frame invariant under rotation around axis of symmetry. The field is static whether you rotate the magnet or not. So far so good. What puzzles me is this , there is a term average magnetic flux or "azimuthal mean" , this term describes the average magnetic field through the area swept by the rotating Faraday...
View full post »

Thread 'Why measure the speed of light in one direction?'

It may be shown from the equations of electromagnetism, by James Clerk Maxwell in the 1860’s, that the speed of light in the vacuum of free space is related to electric permittivity (ϵ) and magnetic permeability (μ) by the equation: c=1/√( μ ϵ ) . This value is a constant for the vacuum of free space and is independent of the motion of the observer. It was this fact, in part, that led Albert Einstein to Special Relativity.
View full post »

Similar threads

Calculating the force on an electron from two positive point charges
Replies
2
Views
1K
Trying to better understand the physics of electrical earth ground
Replies
18
Views
4K
Interactions between a dipole and a point charge
Replies
1
Views
3K
Attractive and repulsive forces from net charges
Replies
1
Views
1K
I What is Electric Flux and How is it Calculated?
Replies
30
Views
2K
Difference Electric Field Strength Point Charges vs. Plates
Replies
3
Views
2K
B How is surface charge accumulated?
Replies
36
Views
6K
Does the superposition of electric fields not hold for moving charges?
Replies
7
Views
2K
Current: the speed of charges vs the number of charges past a point
Replies
37
Views
3K
I Divergence of the Electric field of a charged circular ring
Replies
12
Views
2K

Hot Threads

Recent Insights

Back
Top