Previous Year NEET Question- Electrostatics L-7

Question: Two hollow conducting spheres of radii $R_1$ and $R_2$ $\left(R_1 \ » R_2\right)$ have equal charges. The potential would be (NEET-2022)#

A) More on bigger sphere

B) More on smaller sphere

C) Equal on both the spheres

D) Dependent on the material property of the sphere

Answer: More on smaller sphere#

Explanation#

Potential of conducting hollow sphere $=\frac{K Q}{R}$

Now, $Q=$ same

$\Rightarrow V \propto \frac{1}{R} \Rightarrow$ more the radius less will be the potential.

$\Rightarrow$ Hence potential would be more on smaller sphere.