Enter the drift velocity (m/s) and the external energy provided by the electric field (J) into the Electron Mobility Calculator. The calculator will evaluate the Electron Mobility.

## Electron Mobility Formula

The following two example problems outline the steps and information needed to calculate Electron Mobility.

u = Vd /E

Variables:

- u is the Electron Mobility (m^2/(V-s))
- Vd is the drift velocity (m/s)
- E is the external energy provided by the electric field (J)

To calculate the electron mobility, divide the drift velocity by the external energy provided by the electric field.

## How to Calculate Electron Mobility?

The following steps outline how to calculate the Electron Mobility.

- First, determine the drift velocity (m/s).
- Next, determine the external energy provided by the electric field (J).
- Next, gather the formula from above = u = Vd /E.
- Finally, calculate the Electron Mobility.
- After inserting the variables and calculating the result, check your answer with the calculator above.

**Example Problem : **

Use the following variables as an example problem to test your knowledge.

drift velocity (m/s) = 300

external energy provided by the electric field (J) = 235

u = Vd /E** **= ?