Electric Potential Difference

Pressure difference for water flowing through a pipe is analogous to which one of the following quantity in electricity?

What is One Electron Volt?

The unit of electric potential difference is:

Two points A and B are $50 \mathrm{m}$ apart from each other in a uniform electric field of $25 \mathrm{V} {\mathrm{m}}^{-1}$. Calculate the potential difference between the two given points.

A metallic sphere A isolated from the ground is charged to $+50 \mu \mathrm{C}$. This sphere is brought in contact with other isolated metallics sphere B of half the radius of sphere A. The charge on the two sphere will now be in the ratio

The electric potential due to a point charge at some point in free space is $10 \mathrm{V}$. If the entire system is now placed in a dielectric medium of dielectric constant $2$. What will be the potential at the same point in volt?

Show that the electric potential due to a point charge when surrounded by some dielectric medium is $1/{\epsilon }_{\mathit{r}}$ times of the electric potential when the charge is in free space.

A charge of $10 \mathrm{\mu C}$ is located at the origin of $\mathrm{X}-\mathrm{Y}$ coordinate system. The potential difference between points $(\mathrm{a}, 0)$ and $\left(\frac{\mathrm{a}}{\sqrt{2}},\frac{\mathrm{a}}{\sqrt{2}}\right)$ is