| NOUN | quantity | flux density unit | a measure of the amount of flux per unit of cross sectional area |
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| Meaning | A measure of the amount of flux per unit of cross sectional area. | |
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| Narrower | gauss | A unit of magnetic flux density equal to 1 maxwell per square centimeter |
| microgauss | A unit of magnetic flux density equal to one millionth of a gauss | |
| tesla | A unit of magnetic flux density equal to one weber per square meter | |
| Broader | electromagnetic unit, emu | Any of various systems of units for measuring electricity and magnetism |