Questions tagged [conductors]
For questions about materials which allow the flow of an electric charge (electrical conductors) or the transfer of heat (thermal conductors) through them.
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Do conductors have bound charges?
In Griffiths, the total charge density of a dielectric is: $\rho$ =$\rho_b +\rho_f$.
I have several questions:
Can the total charge density of a conductor be written as the equation above?
Do the ...
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What is dielectric constant of conductor if it is connected to battery as the electric field will generate in conductor does it still be infinite? [closed]
as we calculate dielectric constant of conductor saying Eext/Eext-Einduced = 0 but as inside conductor electric field net would be not equal to zero.
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Will the electrical potential difference between the Windward and Leeward sides of a mountain range generate electrical current?
I would like to know if it is possible that the electrical potential difference between the Windward side and the Leeward side of a mountain range, due to a thunderstorm occurring on the Windward side,...
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Visualization of resistance [closed]
What does a resistor do in an electrical circuit? Does it impede the flow of electrons by increasing offering a path that offers a large no. of collisions? How can i visualise it, i have been told to ...
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Charge besides conductor
This is a curiosity
What would be net charge induced on a (say spherical) conductor when a positive charge is placed besides it.
What I think is that a negative charge will be induced on surface near ...
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How do conductors actually work in electrostatics? [closed]
I am mainly confused because we are learning about conductors in electrostatics, and I always think of an electric wire connected to a phone charging it (a phone charger). So, when I hear "...
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Confusion regarding phase
As far as I know about phase if the phase difference between two waves is positive, the former is leading..and the latter is lagging. Then why has D J Grifith stated this?
If the phase of the magnetic ...
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Charge distribution in two concentric conducting shells connected by a thin wire
Above is the content of the problem in the title and I'm confused about the solution. I'm not sure whether it is correct or not. The two shells are conducting and connected, so the difference in ...
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Why don't positively charged metal ions (in a wire) move but electrons do?
I'm very confused on this question. I've researched online but I can't seem to find the answer anywhere: all I was told was that electrons move (as part of electron flow) towards the regions of high ...
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Charge conservation in ohmic material - Apparent paradox
Consider an ohmic material with constant conductivity, which obeys the relation:
$$\vec J = \sigma \vec E$$
where $\vec J$ is the current density and $\sigma$ is the conductivity. Applying the first ...
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Surface charge density within a parallel plate capacitor on different voltages
I need a way to vary the surface charge density without changing the electric field. My idea is to use two large conducting parallel plates close to each other in vacuum enclosed in a grounded vessel (...
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Metallic bonds in Copper and Electric field application
Didnt know where to put this since its like a combination of Chemistry and Physics.
But in the picture below, we can see that they've defined a metallic bond as essentially the attraction between the ...
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Induced charge on conducting sphere sliced by a plane
We are given a conducting solid sphere, and it is cut by a plane as shown.
A charge $Q$ is given to the smaller part of the conductor, and it is required to find the induced charge on the surface of ...
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Why is the Poynting flux not conserved across the interface between two conducting materials?
This question is part of my attempt to use an answer to another question I've posted on this site.
If I have two materials with complex indices of refraction, $\widetilde{n}_0$ and $\widetilde{n}_1$, ...
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Uniqueness of charge distribution in conductor
I found out about a result describing the uniqueness of the charge distribution on a conductor. It says that for a given total charge on a conductor and a given charge distribution of the outside (...
