| 1. | A low relative permittivity allows for higher-frequency usage.
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| 2. | In an anisotropic material, the relative permittivity may be a tensor, causing birefringence.
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| 3. | Relative permittivity is a complex-valued; its real and imaginary parts are denoted as:
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| 4. | The magnitude of these normal vectors is given by the square root of the relative permittivity.
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| 5. | Besides the relative permittivity, the size and number of layers determines the later capacitance value.
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| 6. | Relative permittivity describes modification of the speed of electromagnetic wave propagation as well as the wavelength.
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| 7. | In materials with relative permittivity,, and relative permeability,, the phase velocity of light becomes
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| 8. | At 205 �C the relative permittivity falls to 33, the same as methanol at room temperature.
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| 9. | Relative permittivity is the factor by which the electric field between the charges is decreased relative to vacuum.
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| 10. | The actual permittivity is then calculated by multiplying the relative permittivity by " ? " 0:
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