All Questions
5
questions
0
votes
0
answers
257
views
Electric field of electric dipole and gradient properties
I am trying to work out whether there is a way to calculate the electric field of a dipole from the following formula:
$$\phi(\vec{r}) = -\vec{p} \cdot\vec{\nabla}\phi_0$$
Where $\phi_0$ is the ...
- 309
2
votes
3
answers
871
views
Line integral of a point charge
I am trying to teach myself Electrodynamics through self-study of Griffiths' Introduction to Electrodynamics, and I am having difficulty with a calculation that involves a line integral of a point ...
1
vote
1
answer
137
views
Other method for finding the equations of the electric field lines
I have an electric potential which, through separation of variables, can be written as $$\phi (x,y)= X(x) \cdot Y(y) =\sum_{n=0}^\infty Cn\cdot \cos(k_n x)\cdot \sinh (k_n y)$$
with $C_n $ and $k_n$ ...
- 548
1
vote
1
answer
252
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Why did we take gradient outside the integral sign in Scalar potential derivation?
I tried to understand the reasoning given in it but I couldn't understand it. It says that "as the gradient operation involves x and not the integration variable x', it can be taken outside the ...
-3
votes
3
answers
1k
views
Why is the electric potential on the surface of a sphere not infinite?
By using Gauss' Law, it can be shown that a uniformly charged hollow sphere can be treated as a point charge lying at its centre with a charge equal to that of the sphere. Owing to this fact, the ...
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