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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > A positively charge sphere of radius r0 carries a volume charge density ρ. A spherical cavity of radius r0/2 is then scooped out and left empty. C1 is the center of the sphere and C2 that of the cavity. What is the direction and magnitude of the electric field at point B?

A positively charge sphere of radius r0 carries a volume charge density ρ. A spherical cavity of radius r0/2 is then scooped out and left empty. C1 is the center of the sphere and C2 that of the cavity. What is the direction and magnitude of the electric field at point B?

In a region of space the electric field is given by E = 8 i ^+4 j ^+3 k ^. The electric flux through a surface of area 100 units in the xy plane is :