hollow conducting 21 Consider an initially neutr spherical

Last updated: 6/10/2023

hollow conducting 21 Consider an initially neutr spherical shell with inner radius r and outer radius 2r A point charge Q is now placed inside the shell at a distance r 2 from the centre The shell is then grounded by connecting the outer surface to the earth P is an external point at a distance 2r from the point charge Q on the line passing through the centre and the point charge Q as shown in the figure 21 2 Q 2r P The magnitude of the force on a test charge q placed at P will be