Glossary:Magnetic Reluctance: Difference between revisions

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Magnetic reluctance is a measure of the reluctance of a magnetic material to change its state of magnetisation. Permanent magnets are made of materials with high reluctance, which is what allows them to be permanent. The core of a [[Glossary:Transformer|transformer]] on the other hand, must have a low reluctance as it will be remagnetised in the opposite direction of every half cycly of he power applied.
When a magnetic material such as iron is subject to a magnetic field, the atoms tend to line up with the field, increasing its effect. Magnetic reluctance is a measure of how much magnetic field is required to produce a given magnetic effect. Fresh air is non-magnetic and so has a high reluctance, unlike iron, which is very susceptible to magnetism.

Latest revision as of 14:45, 5 September 2022

When a magnetic material such as iron is subject to a magnetic field, the atoms tend to line up with the field, increasing its effect. Magnetic reluctance is a measure of how much magnetic field is required to produce a given magnetic effect. Fresh air is non-magnetic and so has a high reluctance, unlike iron, which is very susceptible to magnetism.