Consider two conducting spheres of radii ${{\rm{R}}_1}$ and ${{\rm{R}}_2}$ with $\left( {{{\rm{R}}_1} > {{\rm{R}}_2}} \right)$. If the two are at the same potential, the larger sphere has more charge than the smaller sphere. State whether the charge density of the smaller sphere is more or less than that of the larger one.

In an hydrogen atom, the electron revolves around the nucleus in an orbit of radius $0.53 \times {10^{ – 10}}\,m$. Then the electrical potential produced by the nucleus at the position of the electron is……$V$

Which of the following statements is true about the flow of electrons in an electric circuit?

Figure shows three circular arcs, each of radius $R$ and total charge as indicated. The net electric potential at the centre of curvature is

Find the potential $V$ of an electrostatic field $\vec E = a\left( {y\hat i + x\hat j} \right)$, where $a$ is a constant.