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in terms of a "dielectric conductivity" σ (units S/m, siemens per meter), which "sums over all the dissipative effects of the material; it may represent an actual [electrical] conductivity caused by migrating charge carriers and it may also refer to an energy loss associated with the dispersion of ε′ [the real-valued permittivity]" ([17] p. 8).
Installed faced fiberglass batt insulation with its R-value visible (R-21) [1]. The R-value is a measure of how well a two-dimensional barrier, such as a layer of insulation, a window or a complete wall or ceiling, resists the conductive [2] flow of heat, in the context of construction. [3]
What happens when a liquid is inserted between a convex lens of focal length 20 cm and a plane mirror?plz give a detailed answer. There's no general answer; it depends on the liquid (in particular its refractive index ), what material the lens is made out of, the exact form of the lens (e.g. radius of curvature of each surface), and the ...