All Questions
Tagged with equilibrium charge
25
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Why charges reside only on the surface on conductor?
I wonder why charges reside only on the surface on conductor?
And I read this question and the answer to it:
Why charges reside on the surface on conductor?
https://physics.stackexchange.com/a/210634/...
- 117
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Charge separation equilibrium equation for non-rotating blackhole at Eddington limit with spherically symmetric accretion?
What is the formula for equilibrium charge on a non-rotating black hole with spherically symmetric hydrogen-1 inflow at the Eddington limit of luminosity based on photon scattering acceleration of ...
- 1,357
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Equilibrium position of $ n $ free charges as polynomials roots
The classic problem of the electrostatic equilibrium positions of a linear system of $ n $ free unit charges between two fixed charges is well known, here an example with $n = 1$.
Few days ago I found ...
- 101
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How will the charges redistribute among the 2 charged balls with different materials and different radius when they are touched?
How will the charges redistribute among the 2 charged balls with different materials, different radius when they are touched?
If the 2 balls have the same material, then we have:
$$q_1 + q_2 = q'_1 + ...
- 3
3
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2
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335
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Points where electric field is zero when charges are present at vertices of a regular polygon
There is a $n$-sided regular polygon with a charge $q$ at each vertex. I know that there are $n$ points, other the center of the polygon, where the electric field is zero. But why is this so? Is there ...
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Unstable Equilibrium of electric force [closed]
$q_1=8q$
$q_2=-2q$
There is a proton at $L$ and $2L$ distance from $q_2$ and $q_1$ respectively. At these distances net force is zero on proton. If we displace proton leftward both forces increases ...
- 153
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2
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307
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Does the same point continue to be the neutral point when the system of charges start to move closer or away?
Consider two point charges $+q_1$ and $+q_2$ separated by a distance $r$. A charge $$q_0 ≠ -\frac{q_1q_2}{(\sqrt{q_1}+\sqrt{q_2})^2}$$ (n.b. the equality holds only when $$\vec{F}_{net,q_1} = \vec{F}_{...
- 312
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Equilibrium of a system of charges
Suppose three positively charged particles are constrained to move on a fixed circular track. If the charges were all equal, an equilibrium arrangement would obviously be a symmetrical one with the ...
- 980
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42
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Example of charge distribution that nullifies the electric field in a finite region
Since I'm trying to understand why the electric field is null inside a charged conductor, and the explanation usually given is that "the charges rearrange themeselves in such a way as to nullify ...
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2
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565
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Electric field and charge on an equilateral triangle [closed]
ABC is a right equilateral triangle. An electric charge q is placed at A and an electric charge q' at B. The electric field at C is found to be parallel to the side AB, as shown by the arrow in the ...
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Electrostatics Charges in Stable or Unstable Equilibrium or Numerical - How to solve this analytically?
In this problem we can have a negative charge to the Right of +q and Positive Charge to the left of -3q for the Purpose of equilibrium of all the Three Charges. Now we know that for stable Equilibrium ...
- 31
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2k
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How do I find the equilibrium points in an electric field created by three or more charges?
I know that for two charges $q_1$ and $q_2$ of the same polarity, the neutral point will be at the internal section of the segment by the ratio of $\sqrt q_1$:$\sqrt q_2$, and if they are of opposite ...
- 41
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Why charges should go to the surface of conductor? [duplicate]
How can we show that charges should go to the surface of a conductor, assuming that system should minimize its energy? (With
no additional assumptions and maybe using variation method!)
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Neutral conductor and charged insulator brought near each other
What happens when a charged insulator is placed near an uncharged neutral metallic conductor? I know it attracts each other because of charging by induction (electrons redistribute). But would the ...
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2
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2k
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(Two fixed charges add in a third), why does it matter which side I put the third charge if I change signs accordingly?
So the question is "Two charges, 1.0 micro-Coulombs and -3.0 micro-Coulombs, are 10 cm apart. Where can a third charge be located so that no net electrostatic force acts on it?". Now the instructor ...
