Template:Classification of materials based on permittivity

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Classification of materials based on permittivity
εr/εr Current conduction Field propagation
0 perfect dielectric
lossless medium
≪ 1 low-conductivity material
poor conductor
low-loss medium
good dielectric
≈ 1 lossy conducting material lossy propagation medium
≫ 1 high-conductivity material
good conductor
high-loss medium
poor dielectric
perfect conductor