| Standardization field | Electrical engineering | 
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| Technical committee | BAS/TC 30- Electric cables | 
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| Term (EN) | transverse magnetic mode, ТМ mode | 
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| Definition (EN) | A mode whose magnetic field vector is normal and whose electric field vector is not normal to the direction of propagation.
Note. — In an optical fibre, ТМ modes along with ТЕ modes correspond to meridional rays. | 
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| Term (FR) |  | 
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| Definition (FR) |  | 
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| Term (DE) |  | 
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| Definition (DE) |  | 
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| Term (BS) |  | 
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| Definition (BS) |  | 
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| Term (HR) |  | 
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| Definition (HR) |  | 
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| Term (SR) | poprečan magnetni mod, TM mod | 
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| Definition (SR) | Mod kod kog je vektor magnetnog polja normalan i kod kog vektor električnog polja nije normalan na pravac prostiranja.
Napomena — Kod optičkog vlakna, TM mod zajedno sa TE modom odgovara meridijanskim zrakama. | 
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| Date | 2017-08-09 | 
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| Standards | BAS IEC 60050-731:2017 | 
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