Questions tagged [voltage]
Voltage is the unit of measurement for electronic potential, from one point location to another.
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Doubt about the working principle of a silicon solar cell
I'm studying crystalline solar cell and their working principle, but I still don't completely understand the process.
First of all, I understand that we dope a pure crystalline silicon with boron and ...
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How can the surface of the system consisting of two spheres and wire be equipotential, if the potential function is defined NOT for the net force?
Potential is a function defined for conservative force(s). Now consider what happens when we connect two metallic spheres with a conducting wire. The whole system will act like a big metallic thing ...
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What does the term 'high voltage' really mean?
This might be a dumb question but i am not so familiar with the word voltage:
What does the textbooks really mean when they say high voltage?. Does that mean:
There are more charges so more voltage, ...
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Skin effect fully explained by plane wave attenuation?
I went over the explanations of the skin effect in multiple sources. However, I still don't understand how the fact that this equation:
\begin{equation}
(\Delta - \mu_0\sigma\partial_t - \frac{1}{c^2}...
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How to measure a static electric field?
I looked up google but didn't find any design for measuring electric field that doesn't vary with time.
My own idea is to use two parallel plates (like a capacitor but without the dielectric). In an ...
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Current Voltage characteristic of Josephson Junction
I'm having trouble understanding what the current voltage characteristic of a Josephson Junction looks like.
When we first looked at the voltage state of a Josephson Junction we got the following ...
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Can an Opposing Current Create another Opposing Current?
In Inductors when current increases it's magnetic field induces a voltage which causes an opposing current that slows down the rise of the current that initially creates it, but can this opposing ...
user215726
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What is a good analogy for electric potential?
When the electrical field was defined I could totally relate to $\vec{E}$ being like $\vec{g}$ in mechanics.
But for the electric potential I don't know what would be equivalent analogy. Any ...
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Does charge injection from electrodes increases the total charge in a (semi)conductive channel?
When a (semi)conductor is connected to a voltage bias, a charge is injected by the electrodes. When steady state is reached (constant current flow), does the total charge of the (semi)conductor differ ...
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Is this a proof of a mathematical statement using physics?
In problem 3.16 of "Introduction to Electrodynamics" by D. J. Griffiths, we are told to find the potential inside a cube, 5 sides of which are at zero potential, and the remaining side (...
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What if we used massive voltages to create a Lichtenberg figure in acrylic?
https://en.wikipedia.org/wiki/Lichtenberg_figure
I cannot find anywhere online what the result would be if I used, for example, 1GeV compared to the 10-20MeV which are usually used. This is all ...
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Multipole Expansion: Why is my Taylor Series Wrong?
Let's start by a formula. The scalar electrostatic Potential is given by:
$$\phi(\mathbf{r}) = \dfrac{1}{4\,\pi\varepsilon_0}\,\int \dfrac{\rho(\mathbf{r'})}{|\mathbf{r}-\mathbf{r'}|}\,\mathrm{d^3 r'}$...
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Please help understand Electric Potential Loss in a DC circuit
What is meant by "Electrons lose potential Energy" when going through a resistor. In a case of falling from a height you would be at a lower altitude and therefore lower potential but how is ...
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Is it possible to overload a thin conductive object with electrons?
A parallel-plate capacitor is a very simple device. To make one, you can take two metal plates, separate them with a dielectric material, and voilà! You have a capacitor.
Given a dielectric ...
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Are the potentials of the electrolytes equal in Galvanic cell?
My book defines Electrode Potential for a Galvanic Cell as follows:
A potential difference that develops between the electrode and the electrolyte is called Electrode Potential
$$E= V_{electrode} - ...
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