The flow of charge through a conducting wire connected to a cell is the result of chemical reaction inside the cell.

What is the magnitude of the electric charge on an electron?

When do we say that the resistors are connected in series?

If $2 \times 10^{-3} \text{ J}$ of work is done in moving a particle carrying a charge of $10 \times 10^{-6} \text{ C}$ from infinity to a point $P$, what will be the potential at the point $P$ (in $\text{ V}$)?

If $10$ bulbs of $100 \ W$ each are kept on for $1 \ \text{hour}$, how much electrical energy is consumed?

The unit $Volt \times Ampere$ represents which physical quantity?