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permittivity

Upper-Intermediate (B2)

IPA: /pərˈmɪtɪvɪti/

KK: /pərˈmɪtɪvɪti/

noun
Definition

A measure of how well a material can store electrical energy when an electric field is applied to it.


Example

The permittivity of the material affects how capacitors function in electronic circuits.


Conversation
Sloth A
Have you heard about the concept of permittivity in physics?
Sloth B
Yeah, it has something to do with how materials react to electric fields, right?
Sloth A
Exactly! It measures how well a material can store electrical energy when an electric field is applied.
Sloth B
That's pretty interesting! I didn't realize it was such an important property.

Synonyms & Antonyms
Synonyms
dielectric
capacitance
insulation
Antonyms
conductor
permeability
dissipation
Root Explanation

Permittivity is formed from "permittere" (meaning to allow) and the suffix "-ivity" (indicating a quality or state). The word refers to the quality or state of allowing electric field lines to pass through a material, thus describing how easily a material can permit electric field lines.

Memory Tip

Think of 'allowing' ('permittere') something to happen, and remember that 'permittivity' describes how easily a material allows electric fields to pass through it.

Visually Confused Words
primitivity
imprimitivity
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