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Results tagged with method-of-images
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user 104696
A method to solve certain differential equations on a domain by putting image sources outside the domain to fulfill [boundary-conditions] on the boundary. Common applications can be found in [electrostatics], [magnetostatics] or [acoustics].
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Understanding the method Mr feynman said in the lecture regarding method of images
Imagine that you have a point charge $q$ then the potential at a distance $r$ is $kq/r$ (Gauss).
Then imagine the charge $r$ at the centre of a very thin spherical metal shell of radius $r$.
The poten …
- 99.9k
3
votes
Accepted
Tricky math step in Method of Images for conducting sphere
Let me rewrite your expression in a slightly different way:
$$\frac{q}{|a\hat{x} - y\hat{y}|} = \frac{-q_o}{|a\hat{x} - y'\hat{y}|}$$
So what you have to do is solve this equation:
$$|q_0\,a\ha …
- 99.9k
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vote
Why is a charge induced on a grounded metallic plate when another charge is placed near it? ...
The negative charge $-Q$ induces charges on the initially neutral plate.
$+q$ on the side nearest the $-Q$ and $-q$ on the other side with the plate still neutral.
The plate is earthed with the $-q$ c …
- 99.9k
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Why doesn't electric field pass through an infinite grounded conducting sheet?
There can be no electric field inside a conductor otherwise the mobile change carriers within the conductor would move.
All of the electric field lines from the charge causing induction which reach th …
- 99.9k
1
vote
Accepted
Induced surface charge and total charge in method of images
Just because an object is earthed does not mean it has no net charge.
The field pattern looks something like this.
You can think of the negative charges on the sphere being held on the sphere by the …
- 99.9k