
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 …
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?
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 …
Electric field intensity in a dielectric inside a capacitor
The component of the field perpendicular to the surface is indeed equal just inside and just outside the dielectric. But that field is not equal to the field deep inside the dielectric (far away from the interface) …
Effect on a capacitor due to a dielectric - Physics Stack Exchange
Jun 5, 2024 · Therefore, when the dielectric is inserted, it will do additional work by increasing the charge until the potential difference is reached. However, when the capacitor is connected to a …
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...
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 …
electromagnetic radiation - Real and imaginary parts of dielectric ...
According to Jackson, the real part of the dielectric is related to polarization and anomalous dispersion, while the imaginary part is associated with dissipation of energy into the medium.