Dielectric Constants & Breakdown of Various Materials

AI Thread Summary
A request for a comprehensive table of dielectric constants and breakdown voltages for various materials initiated the discussion. Users shared links to existing resources, including a small table from HyperPhysics and another focused on semiconductors. One participant provided a compiled table, though it required manual entry into a database. The thread highlights the challenge of finding extensive data on dielectric properties. Overall, the discussion reflects ongoing interest in dielectric constants despite the inactivity over the past three years.
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I need a huge table of the dielectric consant and breakdown of various materials...

I have looked all over the net but can only find small tables with 5-10 materials...
 
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Here is a not so huge table I have compiled. Sorry it's not in text format, you will have to
type it into your database.
 

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Realize that this thread has been inactive for almost 3 years.
 

Thread 'Maxwell stress tensor'

This is from Griffiths' Electrodynamics, 3rd edition, page 352. I am trying to calculate the divergence of the Maxwell stress tensor. The tensor is given as ##T_{ij} =\epsilon_0 (E_iE_j-\frac 1 2 \delta_{ij} E^2)+\frac 1 {\mu_0}(B_iB_j-\frac 1 2 \delta_{ij} B^2)##. To make things easier, I just want to focus on the part with the electrical field, i.e. I want to find the divergence of ##E_{ij}=E_iE_j-\frac 1 2 \delta_{ij}E^2##. In matrix form, this tensor should look like this...
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Thread 'Applying the Gauss (1835) formula for force between 2 parallel DC currents'

Thread 'Applying the Gauss (1835) formula for force between 2 parallel DC currents'

Please can anyone either:- (1) point me to a derivation of the perpendicular force (Fy) between two very long parallel wires carrying steady currents utilising the formula of Gauss for the force F along the line r between 2 charges? Or alternatively (2) point out where I have gone wrong in my method? I am having problems with calculating the direction and magnitude of the force as expected from modern (Biot-Savart-Maxwell-Lorentz) formula. Here is my method and results so far:- This...
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