Question

3.
Give definition of relative permittivity. What is
the relative permittivity of air and metal?
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Answer 1

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Answer 2

Give definition of relative permittivity. What is

Give definition of relative permittivity. What isthe relative permittivity of air and metal?

Relative permittivity is the factor by which the electric field between the charges is decreased relative to vacuum. Likewise, relative permittivity is the ratio of the capacitance of a capacitor using that material as a dielectric, compared with a similar capacitor that has vacuum as its dielectricity

The relative permittivity for a metal is close to air at high frequencies. HFSS sets relative permittivity for a metal to 1 for time varying fields, where the charges cannot orient immediately with an applied voltage because of relaxation time.

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