Q. Out of two copper spheres of the same size, $x$ is hollow while $y$ is solid. If they are charged at the same potential, what can be said about the charges on them?
A) Charge on both the spheres is zero
B) Charge on both the spheres is equal
C) Sphere $y$ will have more charge
D) Sphere $x$ will have more charge
Explanation
(b) For a charged sphere or shell of charge potential
$V_{s} = \frac{1}{4\pi\varepsilon_{0}}.\frac{q}{r}.$
Hence, charge on both the spheres will be equal.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.