There are two concentric spherical shells of radii r and 2r. Initially a charge Q is given to the inner shell.Now, switch
S1 is closed and opened then
S2 is closed and opened and the process is repeated n times for both the keys alternatively. Find the final potential difference between the shells
![223257.jpg](https://search-static.byjusweb.com/question-images/toppr_ext/questions/223257.jpg)