| 11. | These systems have low electrical conductivity and low dielectric permittivity.
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| 12. | The systems employ insulation materials that have a low permittivity and loss.
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| 13. | The permittivity and the loss are dielectric properties of the insulation material.
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| 14. | Where ? 0 is the vacuum permittivity and ? 0 the vacuum permeability.
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| 15. | Note the simple frequency dependence of the susceptibility, or equivalently the permittivity.
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| 16. | Permittivity as a function of frequency can take on real or complex values.
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| 17. | This frequency dependence of the susceptibility leads to frequency dependence of the permittivity.
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| 18. | The permittivity of a medium changes with the frequency of the magnetic field.
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| 19. | Water droplets have a permittivity that is much higher than the surrounding oil.
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| 20. | This results in control over material parameters known as permittivity and magnetic permeability.
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