19 A point charge q is placed at a distance r from the

Last updated: 6/10/2023

19 A point charge q is placed at a distance r from the centre O of an uncharged spherical shell of inner radius R and outer radius 2R The electric potential at the centre of the shell will be a 1 1 The 4TEO r 2R c q 1 4 r 2R Conductor b 9 R q 4 or d None of these O 2R