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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > A thin metallic spherical shell contains a charge Q on its surface. A point charge q 1 ​ is placed at the centre of the shell and another charge q 2 ​ is placed outside the shell. All the three charges are positive. Then, the force on charge q 1 ​ is

A thin metallic spherical shell contains a charge Q on its surface. A point charge q 1 ​ is placed at the centre of the shell and another charge q 2 ​ is placed outside the shell. All the three charges are positive. Then, the force on charge q 1 ​ is

If the flux of the electric field through a closed surface is zero then