coercivity

American  

[koh-er-siv-i-tee] / ˌkoʊ ərˈsɪv ɪ ti /

noun

Electricity.

1. the magnetic intensity needed to reduce to zero the magnetic flux density of a fully magnetized magnetic specimen or to demagnetize a magnet.

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coercivity British  

/ ˌkəʊɜːˈsɪvɪtɪ /

noun

1. the magnetic-field strength necessary to demagnetize a ferromagnetic material that is magnetized to saturation. It is measured in amperes per metre Compare coercive force

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coercivity Scientific  

/ kō′ər-sĭv′ĭ-tē /

1. The magnetic flux density needed to reduce the magnetization of a material (especially a ferromagnetic material) from complete saturation to zero. Coercivity is measured in teslas.

2. Compare remanence

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Etymology

Origin of coercivity

First recorded in 1895–1900; coercive + -ity

Example Sentences

This is crucial, because it allows smaller coercivity — that is, the magnetization here is easier to switch.

From Nature

He said in a recent lecture that he knew nothing about magnetic recording at the time, and even mispronounced the word “coercivity,” which refers to a magnetic field’s intensity.

From New York Times

If required for permanent magnet making, it should have the highest possible coercivity combined with a high retentivity.

From Project Gutenberg

Supposing it is desired to make an electromagnet which shall be capable of undergoing very rapid changes of strength, it must have such a form that the coercivity of the material is overcome by a self-demagnetizing force.

From Project Gutenberg