Area vector ,Angle ,Solid -angle,क्षेत्रफल वेक्टर,कोण,घन कोण

Area vector ,Angle ,Solid -angle,क्षेत्रफल वेक्टर,कोण,घन कोण
Class 12 lesson 2Nd Electric flux and Gauss theorem
Up Board Physics , NCERT PHYSICS

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Effective method