CBSE CLASS 12TH PHYSICS BOARD PAPER 2020
IMPORTANT TOPICS FOR CLASS12 PHYSICS FOR BOARD EXAM
IMPORTANT TOPIC FOR CLASS12TH PHYSICS CBSE BOARD EXAMINATION: Subject : PHYSICS By- Mamta Singh Ch.-1 Electric flux Force and Torque on the electric dipole. Electric field on the axial and equatorial line. Statement of Gauss-Theorem. Applications of Gauss- Theorem,all three applications of Gauss theorem especially charged spherical shell. Ch.-2 Capacitance and factor’s affecting capacitance. Energy stored in a capacitor and its energy density( formula only). Capacitance of a parallel plate capacitor with a dielectric slab placed in between. (IMPORTANT) DRAW EQUIPOTENTIAL SURFACE TO A POINT CHARGE,LINE CHARGE,PLANE ELECTRIC FIELD AND DUE TO A ELECTRIC DIPOLE. Equi-potential surface and its properties. Relation between electric field and electric potential. Effect on various parameters when a dielectric slab is introduced b/w the plates of parallel plate capacitor. Principe of parallel plate capacitor. Potential at any general point of electric dipole. Ch.3 (7 marks)
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