Question

A thin metallic spherical shell of radius R carries a charge Q on its surface. A point charges

placed at its centre C and an other charge +2Q is placed outside the shell at a distance x from

the centre as shown in the figure. Find (1) the force on the charge at the centre of shell and at the

point A, (ü) the electric flux through the shel​

Answer 1

The electric field inside a spherical shell is zero thus, the force experienced by the charge at the centre of the shell C will also be zero.