Capacitors and Capacitance: Capacitor physics and circuit operation
Why Physics Stack Exchange recommends it
Physics Stack Exchange users link it when they want to give or get an intuitive picture of how charges sit on capacitor plates and behave in a circuit.
Recommended by 1 people across 2 different months, 2018 to 2020.
What it is
A 10-minute animated explainer by Eugene Khutoryansky on how capacitors work, covering charge on plates, capacitance, dielectrics and what happens in a circuit. It uses 3D animations of charges and fields rather than equations-heavy lecture slides.
What people said
Recommends user243016 · 2020-05 · Physics Stack Exchange · on “How do capacitor plates maintain equal but opposite charges in a circuit?”
This might help for your intuition [this video] The assumption that you mentioned is only used for deriving the capacitance of a capacitor(using Gauss law). But in reality standard capacitors always have equal and opposite charges on it's plates while connected in a circuit (watch the video). Why does the field confined only inside the capacitor? It's indeed an application of Gauss law! I would like to give a hint, so that you could build other things on your own. Consider two infinitely large charged sheets(oppositely charged) kept at some distance parallel to each other. Now, what is the electric field inside and outside the charged plates? Remember, in reality, capacitor plates are kept very c
Recommends user243016 · 2020-07 · Physics Stack Exchange · on “How does a Capacitor generate a potential difference even after disassembling the Capacitor?”
It's clear from the video that all the charges left the conducting plates, but the induced charges on the dielectric still remains which maintains a potential difference. This video [this video] will be extremely helpful for an intuitive understanding of what's actually happening when we charge a capacitor.
Cites Micheal Brain Hurts · 2018-03 · Physics Stack Exchange · on “How can a conductor plate stay neutral when we force it to be charged?”
At the beginning of this video " Capacitors and Capacitance: Capacitor physics and circuit operation [this video] " [LINK] Let say, blue particles be negative charges. In the video, it is claimed that If we push electrons to the conductor plate, we cannot make the plate to be charged. I do not understand why.
Cites Alper91 · 2019-05 · Physics Stack Exchange · on “Is it possible to create and control a magnetic field in a dielectric material?”
A capacitor is usually formed by an insulater between two conductive plates. By applying voltage difference between the plates we create an electric field within the insulator in one direction. If you are not familiar with the concept please watch this video [this video] . But! If I introduce two extra conductive plates to a normal capacitor as below drawing: [LINK] Moreover, If I apply the voltages Vx=A.sin(wt) and Vy=A.cos(wt), could I get a constant magnetic field towards z+? If not why? Thanks.