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...

Mar 31, 2024 · These equations seem to hold in most cases, but there are exceptions (e.g., a dielectric sphere uniformly polarized in a uniform electric field). My textbook tells me that these expressions …

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 …

Jan 27, 2025 · Now, if you were to insert a dielectric of relative permittivity k k, then capacitance would become Ck C k, and current would accordingly become V0ωCksin(ωt + π/2) V 0 ω C k s i n (ω t + π …

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?

Dec 3, 2022 · 2 We have a conductor of resistivity ρ ρ and has a boundary with a dielectric of permittivity ϵ ϵ and we have displacement vector D D → at an angle α α with normal to the boundary and …

Jan 9, 2016 · I'm wondering what the dielectric constant or permittivity of metals is --particularly copper. Do metals have an infinite permittivity?

Mar 17, 2015 · A dielectric effectively behaves as if it was thicker than it is. If the dielectric constant is K K and the thickness of the dielectric is t t, then for calculating the force it behaves as if the thickness …

Jan 15, 2021 · The questions asks that, given the (surface) charge density (σ) on the plates of a parallel plate capacitor and dielectric constant (k), what would be the magnitude of induced charge density …

Dec 16, 2018 · A dielectric is always an insulator. A semiconductor can be an insulator or a conductor depending on conditions such as whether an electric field is present. For example a transistor can be …