- #1
Fjolvar
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I have a few questions related to finding the electric field of an object.
1. What's the difference between a conducting object (sphere, cylinder) vs. a non conducting object? Is the charge inside a conducting and nonconducting sphere both zero if the surface charge density is uniform? What about for a cylinder?
2. When you calculate the E field, sometimes I'm given the volume charge density and sometimes the surface charge density. This only means that Qenc is defined by [tex]\rho[/tex] d [tex]\tau[/tex] and [tex]\sigma[/tex] dA correct? Otherwise the concepts are the same..?
Also, I'm looking at a problem from my book using a cylinder where the E field inside did not result to zero.. so I'm now confused. Any help regarding these subjects would be immensely appreciated. Thank you.
1. What's the difference between a conducting object (sphere, cylinder) vs. a non conducting object? Is the charge inside a conducting and nonconducting sphere both zero if the surface charge density is uniform? What about for a cylinder?
2. When you calculate the E field, sometimes I'm given the volume charge density and sometimes the surface charge density. This only means that Qenc is defined by [tex]\rho[/tex] d [tex]\tau[/tex] and [tex]\sigma[/tex] dA correct? Otherwise the concepts are the same..?
Also, I'm looking at a problem from my book using a cylinder where the E field inside did not result to zero.. so I'm now confused. Any help regarding these subjects would be immensely appreciated. Thank you.