All Questions
4
questions
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3
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Understanding Electric and Gravitational Potentials
I have spent a lot of time trying to understand potentials (gravitational and electrical) and I can't grasp it. I understand that it is the work in bringing a point mass (or charge) from infinity to a ...
5
votes
2
answers
629
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Why we can use the divergence theorem for electric/gravitational fields if they have singular point?
If we were to calculate the surface flux of the total field, we would only require the vector field to be continuous on the boundary. But in order to replace the surface integral by a volume integral ...
5
votes
2
answers
1k
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Why does field strength follow the inverse square law but potential does not?
Either in a gravitational or electrical field, let's say an electrical field, the electrical field strength follows the inverse square law. This is fairly intuitive just due to the geometry of the ...
1
vote
2
answers
195
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Electric voltage versus gravitational voltage across a unifom field
Let us say we have a uniform electric field, like between two charged plates separated by a distance $d$.
The formula for the voltage between the plates is $\Delta V=Ed$.
But what is the value of ...