Question

With which of the following can we compare to the flow of electrons?

• A. The volume of water flowing through a water pipe or water falling down in a waterfall.
• B. Volume of water freezing to form ice.
• C. A quantity of water spreading on a plane.
• D. The process of melting of ice to form water.

Answer 1

The correct option is A

The volume of water flowing through a water pipe or water falling down in a waterfall.

We know that the flow of water through a pipe is due to the pressure difference occurring between the ends of the pipe. Similarly, in a waterfall, the water with higher potential energy falls from a height. This could be viewed as the flow of electrons when a voltage difference is applied at the ends of a conductor.