
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 - 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 …
Frequency dependency of dielectric constant - Physics Stack Exchange
Mar 4, 2024 · The graph of dielectric constant is not linear with respect to increasing frequency. Polarization mechanism cannot keep with the frequency, and hence the dielectric constant abruptly …
electrostatics - Why net force on two oppositely charged charges when ...
Nov 16, 2024 · According to the equation the force on charges decreases when they are submerged in medium of dielectric constant k but , I wanted to know theoretical explanation , why force decreases …
What is the dielectric constant of a pure conductor?
Feb 18, 2016 · Dielectric constant is the ratio of permittivity of a medium to the permittivity of free space. How to find dielectric constant of a conductor?
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?
condensed matter - Static dielectric constant and optical dielectric ...
May 8, 2022 · 0 The "optical" dielectric constant (written epsilon_infty) applies at a frequency well above the highest frequency of lattice vibrations and below the onset of electronic transitions. Thus it …
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 …
Why is the dielectric strength decreasing with thickness
Jul 2, 2020 · I wonder why the dielectric strength is higher the thinner the material is: "Dielectric films tend to exhibit greater dielectric strength than thicker samples of the same material." Sou...
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 …