All Questions
62 questions
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Intensity of electric field [duplicate]
Intensity of electric field at a point is defined as the force felt by a charge at that point due to the charge creating that field. Why then do we divide the force from Coulomb's law by the charge? ...
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0
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1
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131
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A question about Coulomb's law for one moving and one stationary charge
let one charge is moving and another charge is stationary (compulsory). Then the electric force between them can be calculated by coulomb's law?
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2
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293
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If the charge density is constant, then how can it be depend on distance?
Imagine we have some constants like 1,2,3 etc. Then how can they be dependent on any other thing?
The same is the case with charge density: whether it be volume charge density, surface charge density,...
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1
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72
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Where does the factor $\frac{1}{2}$ come from in the force equation $\vec{F}=\frac{1}{2}Q\vec{E}$?
Generally, I have seen equations like $\vec{F}=Q\vec{E}$ which obviously makes sense. However, in the case of a capacitor where the force experienced by each of the plates (having charges $\pm Q$ and ...
1
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1
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97
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The force experienced on a charge, using macroscopic quantities
Zangwill says (Zangwill, Modern Electrodynamics, 2012 edition, page 40, undersection 2.3.1, "Lorentz Averaging")
...An example is the force on the charge density $\rho$ and current
density $...
- 702
0
votes
1
answer
65
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Time lag for generation of electrostatic force
Suppose we make a certain point in space charged. Say we impart some negative charge, such that electrostatic condition is maintained.
Then, after the point gets charged will the electric field due to ...
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1
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1
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56
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Forces acting inside conductor in an electric field
In the book on electrostatics and magnetism by Purcell. In the third chapter he mentions about conductors in the electrostatic field.
In the static situation there is no further motion of charge. You ...
0
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2
answers
199
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Opposite charges canceling out
I know that when two unlike charges brought near, they will attract and cancel out each other.
So my question is what does cancel each other mean? Does they combine and form a neutral charge? I mean ...
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1
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2
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85
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How to find a No Flow Boundary intuitively or exhaustively for an electric field simulation?
Apologies as this is my first time posting here.
I am trying to simulate Electric Fields and lines of force using pygame to find no flow boundaries. I wrote some crude code and was able to come up ...
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6
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9
answers
2k
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Is the electric field a Force?
Coloumb force that act between two charges is equal to :
\begin{gather} F=KQ_{}Q_{0}/r^2 \end{gather}
And this Coloumb force has units of Newton .
But the electric field is defined as
\begin{gather} E=...
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2
votes
0
answers
64
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How does the electric field of one particle affect another? [duplicate]
Im curious as how exactly a Electric field physically applies a force to positive/ negative charges within its field. What interaction takes place? Does a charge simply “touch” the field and ...
- 113
0
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5
answers
266
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Precise definition of electric field strength
In the textbook ''introduction to Electrodynamics'' by Griffiths and also in textbook '' Matthew-N.-O.-Sadiku-Elements-of-Electromagnetics''
both books defined the electric field strength that it's: ...
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7
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11
answers
3k
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How does an electric field apply force to charged particles?
Im curious as how exactly a Electric field physically applies a force to positive and negative charges within its field. What interact action takes place? Does a charge simply “touch” the field and ...
- 113
0
votes
1
answer
72
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How do force-fields (i.e. electric field) apply "force at a distance"?
I often see when an article or text describes a "field of force" (for this question lets use the electric field) that they say that its a "forces at a distance". Whats going on ...
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1
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1
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617
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The Relationship between Coulombs Law and Electric Fields
Im trying to understand the relationship between Coulomb's Law and Electric Fields. According to Coulomb's Law opposite charges attract (apply forces on one another)and the way I think about it is ...
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