Charges Q and 2Q are held by two concentric spherical conducting shells of radii R and 2R respectively. Both are connected with each other. Change in value of electric potential on the bigger shell is

Options

A. `(1)/(4piepsilon_(0))(3Q)/(2R)`
B. `(1)/(4piepsilon_(0))(3Q)/(R)`
C. `(1)/(4piepsilon_(0))(Q)/(2R)`
D. zero

Answer

D

Explanation

The surface charge density is same for both the sphere.
`therefore` No charge will flow even after they are connected, i.e., the change in value of electric potential is zero.