# Why is there higher inductance with Iron cores?

**URL:** <https://forum.digikey.com/t/why-is-there-higher-inductance-with-iron-cores/27185>\
**Category:** Education\
**Created:** [December 8, 2022, 4:30pm UTC](https://forum.digikey.com/t/why-is-there-higher-inductance-with-iron-cores/27185 "2022-12-08T16:30:50Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Justin\_11506](https://avatars.discourse-cdn.com/v4/letter/j/6a8cbe/32.png) [@Justin\_11506](https://forum.digikey.com/u/Justin_11506)\
**Post date:** [December 8, 2022, 4:30pm UTC](https://forum.digikey.com/t/why-is-there-higher-inductance-with-iron-cores/27185/1 "2022-12-08T16:30:50Z")

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Inductors store energy by means of a magnetic field. The flow of electric current creates a magnetic field around the inductor. The strength depends on the magnitude of the current and follows any changes in current. Iron has a very high magnetic permeability. The greater the permeability of the core will result in a greater magnetic flux. When there is a larger flux there will a larger magnetic force and thus creating a much larger inductance.