fɔːɹ mətˈɪɹiəlz wɪð lˈɪɾəl ɔːɹ nˈoʊ mˈæɡnɪtˌɪzəm ˈaɪ.ˈiː. , sˌoʊ wiː kæn jˈuːz ðɪ ˈiːzili mˈɛʒɚd mæɡnˈɛɾɪk fˈiːld ɪntˈɛnsᵻɾi ˈeɪtʃ ɪnstˈɛd ʌv bˈiː:
For materials with little or no magnetism (i.e. ) , so we can use the easily measured magnetic field intensity H  instead of B: