86 In the figure A B C and D are four concentric spheres of

Last updated: 6/9/2023

86 In the figure A B C and D are four concentric spheres of radius a 2a 3a and 4a They contain charges 3q 6q 9q and 12q respectively In the beginning switches S and S are open If sphere C is only earthed Aq amount of charge flows from the sphere C to the earth If the sphere B is only earthed then Aq2 amount of charge flows from the sphere B Aqil to the earth the value of 4921 is equal to a 1 c 2 3 K 3a O 2a a V B O 4a b 3 5 d 1 2 D