
Resultant capacitance of a capacitor having a combination of ...
Mar 7, 2021 · In few questions, I am having some confusion on how to take the resultant capacitance of a parallel plate capacitor with a combination of dielectric in between parallel plates.
Difference between dielectric constant and dielectric function
I'm confused by the definition of dielectric constant. We all know that dielectric is function of wavelength, because materials respond in different ways depending on the energy of the light. But w...
electrostatics - Trick question: why do dielectrics and isolated ...
Mar 5, 2023 · Trick question: Dielectric material produces net surface charge when placed in electric field. Isolated conductor also produces net surface charge when placed in electric field. However, …
Why is the general definition of electric fields in dielectrics ...
Jun 9, 2020 · 2 According to the definition of the dielectric constant (k) for a dielectric, the electric field in the dielectric is defined as the corresponding electric field in vacuum divided by k. We are also aware …
electric fields - Understanding dielectrics on the basis of induced ...
Jul 6, 2024 · $\dots$ why can we view a dielectric as plates of opposite charge for the calculation of field, but not for the calculation of energy density? because you are considering two different aspects …
Conductor-Dielectric Boundary Conditions - Physics Stack Exchange
Dec 3, 2022 · 2 We have a conductor of resistivity $\rho$ and has a boundary with a dielectric of permittivity $\epsilon$ and we have displacement vector $\vec D$ at an angle $\alpha$ with normal …
electromagnetism - Dielectric constant or permittivity of metals ...
Jan 9, 2016 · I'm wondering what the dielectric constant or permittivity of metals is --particularly copper. Do metals have an infinite permittivity?
Surface charge on dielectric interface - Physics Stack Exchange
Jan 19, 2021 · As the dielectric constant of the plates are different, I would expect a surface density at the interface of the two dielectric materials. I want to calculate this surface charge density. I have the …
electrostatics - Why is capacitance increased with a dielectric rather ...
Feb 12, 2019 · A dielectric with high permittivity $\varepsilon$ permits (requires) more polarization for a given field magnitude than a low permittivity one. More polarization means more charge stored, so …
Is free space a 'dielectric'? - Physics Stack Exchange
Nov 13, 2020 · The physical constant $\epsilon_0$ is usually called "permittivity of free space" or "vacuum permittivity". Griffiths says: I dislike the term, for it suggests that the vacuum is