# Charge Definition and 226 Discussions

Chargé is a commune in the Indre-et-Loire department in central France.
Chargé is a small town near Amboise. The Rock 'in Chargé festival has revitalized the village since 2006

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1. ### I Destat apparatus

I hope you all have a wonderful day, Some time ago, I bought a device that is supposed to eliminate static charge on my vinyl records (which aids to the overall sound quality). I was sitting on the couch and having a deep thought, as me myself have no professional background in physics, I...
2. ### Finding the total charge in an electrolyte

Total number of charges = charge per ion * number of ions = 1.6*10^-19 * number of combined ions Solution: 1.6* 10^-19 * number of negative ions
3. ### Surface Current and Electric Field

Hi everyone! I'm pretty new in this forum, I found the topics here very relevant to my physics course. And here is my question: Given the following drawing, two infinite sheets (in y and z axis) of ideal conductive material. their thickness is infinitesimal (dx->0). The electric feild is...
4. ### Calculate the charge on an oil droplet

The book gives an answer of Q = 3.2 x 10^-19C I get an answer of 6.67 x 10^-19C. Workings below:
5. ### I Charge vs Force Carriers

I'm a bit confused about what difference there is (if any) between charge and force carriers. I imagine charge as a field around a particle that pushes or attracts other particles. But we're also told that bosons mediate the forces by exchanging. So there seems to be a redundancy unless charge...

39. ### Quick Question about a Piezoelectric shoe for project

I am currently working on a piezoelectric shoe and the objective of the project is to charge a phone I am aware a phone is DC and piezoelectric disc generate AC I know I need a bridge rectifier to convert My question is: Would I generate more volts if I Use a bridge rectifier to convert AC to DC...
40. ### I Radiation of matter "free falling" into the black hole

Hello everyone, "Does a charged particle radiate in free-fall?". I read many threads on this subject and I was surprised to find out that there is no unanimous "Yes or No" answer to this question. Here is an interesting answer from researchgate.net: The question is widely discussed in the...
41. ### Confusion with constant voltage and dielectric

Homework Statement Consider a conducting sphere with radius ##R## connected to a voltage source of ##V_0## volts. If the sphere is then covered by a dielectric spherical layer of radius ##9R## calculated the relative permitivitty ##\varepsilon_0## needed so that the field in the empty zone...
42. ### Charge distributions of two infinite parallel plates

Homework Statement Two infinitely large conducting plates with excess charge 2Q and 3Q are placed parallel to one another, and at a small distance from one another. How are the charges 2Q and 3Q distributed? You may assume that infinitely large sheets of charge produce electric fields that are...
43. ### I What is the charge for the weak interaction?

We have the electric charge for the electromagnetic force, the color charge for the strong force. What is the charge for the weak force? Thank you. :)
44. ### Why isn't a capacitor an open circuit?

I understand the basics of how capacitors work. If you hook one up to a power source, negative charge will build up on one plate, and positive charge will build up on the other plate. As the charges build up, an electric field forms between the plates and a potential difference is established...
45. ### When Electric Field is 0 is potential also 0?

So here is how my book defined electric potential. If you take a charge, it will have a corresponding electric field associated with it. If you put another charge in that electric field, an electrostatic force will act on it and give it kinetic energy. This kinetic energy can't come from thin...

So I understand that a capacitor consists of 2 plates separated by a distance which creates a potential difference between the plates. But I was confused, when watching this physics video it seemed to be saying that once the capacitor was fully charged, the plate closest to the positive terminal...
47. ### Magnetic Field due to Opposing Coils

Homework Statement Describe the magnetic field you would observe if two coils were connected with magnetic fields pointing in opposite directions. Homework Equations No equation The Attempt at a Solution If the magnetic field was pointing in opposite directions, would it mean that it would...
48. ### Total interior and exterior charge of a hollow sphere?

Homework Statement A hollow conducting sphere has inner radius R and outer radius 1.5R. A +40nC point charge is placed at the center. What is the total charge on the interior and exterior walls of the sphere? R=10cm Homework Equations Gauss's Law σ = Qenc/A The Attempt at a Solution I'm not...
49. ### Conservation of electrical energy on a conductor

I'm having trouble seeing how electric potential energy production on a conductor follows conservation of energy. Let's use the photoelectric effect as an example. A photon with energy E = hν strikes a conductor, ejecting a photoelectron with a maximum kinetic energy of hν - φ. Assuming the...
50. ### B What is source of fundamental particle charge?

Hello, Analogous to mass of fundamental (not composite) particles coming from interaction of those particles with the Higg's Field, does charge of fundamental particles come from interaction of those particles with some known/hypothesized fundamental field? Thank you!