hello mam i have doubt in physics lecture of soumik sir because sir has not done the 5 th chapter which is magnetism and matter but completed next three chapters after it when will sir do that chapter we have that chapter for our second quaterly i have been searching that chapter lecture since 1 hour then i got to know that sir has not done it only please tell sir to do that chap before monday we have exams on ot please please. mam😢