A metallic shell has a point charge 'q' kept inisde its cavity. Which one of the following diagrams correctly represents the electric lines of forces?

A metallic shell has a point charge .q. kept inside its cavity. Which one of the following diagrams correctly represents electric lines of forces

A metallic shell.has a point charge ‘q‘ kept inside its cavity. Represent its electric lines of forces?

A negatively charged rod is held close to one side of a metal ball and the other side is earthed. Which of the following diagrams correctly shows the charge distribution?

A metallic spherical shell of radius R has a charge -Q on it. A point charge +Q is placed at the centre of the shell. Which of the graphs shown below may correctly represent the variation of electric field E with distance r from the centre of shell ?

A metallic spherical shell of radius R has a charge -Q on it. A point charge +Q is placed at the centre of the shell. Which of the graphs shown below may correctly represent the variation of electric field E with distance r from the centre of shell ?

If r is distance measured from centre of a charged shell and R is its radius, then the graph which may correctly represent variation of electric field (E) is

A point charge q is kept inside an electrically neutral shell with its outer surface spherical in shape then the potential at point P would be