Question

5.
A point charge q is placed at a distance from
centre of conducting sphere, of radius R
When the switch 'S' is closed, which of the
following is correct?
ģ---------
(1). The potential at O is zero
(2) The potential at O is 0
(3) The charge on sphere is zero
(4) Both (2) & (3) are correct​

Answer 1

Answer:

both 2 and 3 are correct

Answer 2

Answer:

the potential at o. is zero.. because when the sphere is earthed its potential becomes zero