All Questions
Tagged with linear-systems electrostatics
24 questions
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Calculation of charge by superposition
Consider this example from page 149 in Electricity and Magnetism by Purcell and Morin. The charge on each plate is calculated by superposition, by first assuming that plate 1 has a potential $\phi_1$ ...
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Mirror image Electric field and potential
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My book says the electric field due to a positive point charge at a certain distance from the surface of flat, infinite earthed conductor can be obtained by introducing a virtual negative mirror ...
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Superposition principle for the electric field
I had read somewhere that superposition principle is valid for linear functions, but the electric field is not a linear function, then why is the superposition principle valid for electric field?
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Symmetry arguments in Gauss law and Superposition [duplicate]
Right now I am working on electrostatics. One of the techniques used is to use coulombs law and superposition in a situation where one can sum the point charges and corresponding fields to get the ...
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Superposition principle in electrostatics: Experiments
I understand that the superposition principle in electrostatics is consistent with experience and therefore is not very questionable. However, is it possible to perform a direct experimental test of ...
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Superposition principle and fixed positions charges
I am trying to understand this sentence of my course:
The superposition principle implies that the net force between any two
charges is independent of the presence of other charges. This is true
if ...
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Why potential due to system of charges is scalar sum?
Suppose there are three point charges $q_1,q_2,q_3$. We have to find potential at point $P$. So we do scalar sum of all potentials at that point taking one charge at a time.
But I am saying that, when ...
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Addition of Potentials
Say we have a charged shell A (radius $R$) that is present within another charged shell B (radius $2R$).
The charged shell A has a net charge $Q$ and the shell B has a net charge $3Q$.
Taking shell A ...
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Does superposition principle of electric fields hold for conductors?
Suppose we have two identical oppositely charged spheres separated by some short $ x $ distance, then if we say that superposition principle holds, then at all points in space outside the conductors, ...
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Why does the dependence of Coulomb force on the medium not conflict with the superposition principle?
Why does the dependence of Coulomb force on the medium not conflict with the superposition principle?
As I have been told (and checked myself on the web including this website), the Coulomb force ...
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Why is the effect of Coulomb's force the same on more than two charges?
As we have developed the idea of electric field lines from Coulomb's law. If two equal and opposite charges are in plane, all the effect of electric field vectors adds to line joining the two points, ...
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Legendre Polynomials Integrals for Laplace Solutions
I know how to normalize Legendre polynomials, but I have a sphere with 0 to pi/3 boundaries where the potential is $V$, otherwise zero. For normalization it is -1 to 1, what changes with different ...
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Can we treat superpostion principle of charges as a simple vector addition?
In my physics NCERT class 12 it says that:
Superposition principle should not be regarded as obvious or equated with the law of addition of vectors. It says two things: force on one charge due to ...
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Problem in understanding superposition principle in electrostatics
When I have a single charge, it produces a electric field and a test charge will experience a force. Now when I have two(identical,same sign) charges, they produce electric fields and when the test ...
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Why some forces follow superposition principle?
Let there be a system of $n$ source charges and a test charge $Q$. When we say superposition applies to electrostatic force, we conclude that the interaction between a given source charge and the test ...
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