Given below are two statements.

Statement $I$ : Electric potential is constant within and at the surface of each conductor.

Statement $II$ : Electric field just outside a charged conductor is perpendicular to the surface of the conductor at every point.

In the light of the above statements, choose the most appropriate answer from the options give below.

A hollow closed conductor of irregular shape is given some charge. Which of the following statements are correct ?

Consider the shown system of two concentric thin metal shells. The inner hell has charge $Q$, while the outer shell is neutral. Potential difference between the shells is $V$. If the shell are joined by metal wire, then potential of the inner shell is

Two metallic spheres of radii $1\,cm$ and $2\,cm$ are given charges ${10^{ – 2}}\,C$ and $5 \times {10^{ – 2}}\,C$ respectively. If they are connected by a conducting wire, the final charge on the smaller sphere is

Two conducting spheres of radii $5\, cm$ and $10\, cm$ are given a charge of $15\,\mu C$ each. After the two spheres are joined by a conducting wire, the charge on the smaller sphere is…….$\mu C$