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Results tagged with electromagnetism
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user 81646
The classical theory of electric and magnetic fields, both in the static and dynamic case. It also covers general questions about magnets, electric attraction/repulsion, etc. Distinct from electrical-engineering.
5
votes
Accepted
Calculating the resistance of a 3D shape between two points
Well, yes you can, but it is usually very hard. Here are the steps:
Solve the Laplace equation:
$$ \nabla^2V = 0 \, .$$
In your case, find the general solution in spherical coordinates. Try to use e …
- 176
1
vote
About field gradient
I think you are mixing two things: gradient and divergence.
The gradient is (normally) used when you have a scalar field, or function. A scalar field (or function) is when you associate a number to e …
- 176