Here's why:

* Mobility describes how easily an electron can move through a material under the influence of an electric field.

* Square centimeters (cm²) represents the area the electron travels across.

* Volt (V) represents the electric field strength.

* Second (s) represents the time it takes for the electron to travel.

So, a higher mobility value means the electron can move faster and farther across a given area under the same electric field.