permittivity
- noun
- /pərˌmɪtɪˈvɪti/
- Specialized
- Tau is the charge relaxation time, the permittivity divided by the conductivity.
Examples
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Where E_n is the normal component of the electric field, Sigma is the surface charge density, and Epsilon_0 is the permittivity of free space.
Academic text (1998) -
In the case of a large permittivity, almost the entire anode voltage is applied to the film—anode vacuum gap.
Academic text (2018) -
And this is also equal to I upon epsilon which is just the permittivity times the D field.
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It was shown that the permittivity of the film is quite high (on the order of ten or higher), the potential barrier becomes narrower, and its height decreases.
Academic text (2018) -
A film made of allotropic modifications of carbon (disregarding porosity) has a permittivity of about 16, which substantially reduces the strength of the image upon the transition of electrons from the metal to this film.
Academic text (2018) -
Triglycine sulfate (TGS) and its isomorphs have very favorable properties, including high pyroelectric coefficients and relatively low permittivity.
Academic text (2005) -
Let us consider the vacuum diode structure shown in Fig. 1 with 2D-periodic dielectric right parallelepipeds of size b x b x c with permittivity e, which are located on a conducting cathode with period a along the x and y axes.
Academic text (2018) -
The permittivity of the material determines how much electrical energy can be stored.
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In electronics, understanding the permittivity of different materials is crucial for circuit design.
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Researchers measured the permittivity of the insulating material to improve its performance in electric fields.
Surface Forms
Morphology
permittivity = permittive (semi-transparent) = permit + ive + ity
Formation from an adjective ('permittive') by adding '-ity' is regular, but the technical physics meaning is specialized and not immediately guessable to average learners.
Etymology
The word permittivity comes from Latin parts per- 'through' and mittere 'to send', and you can see the same root in the words permit and transmit. So, permittivity is about how much a material 'lets' an electric field pass through it and how it stores electrical energy.