140. The two charged metal spheres X and Y shown above are far apart, and each is isolated from all other charges.
The radius of sphere X is greater than that of sphere Y, and the magnitudes of the electric fields just outside their surfaces are the same. How does the charge on sphere X compare with that on sphere Y ?
(A) It is greater.
(B) It is less.
(C) It is the same.
(D It cannot be determined without knowing the actual value of the electric field just outside the spheres.