Drift Current Density Calculator

Drift Current Density Calculator

Calculate the drift current density using the equation:
\[ J_{drift} = q\,n\,\mu\,E \] where \(q\) is the elementary charge, \(n\) is the carrier concentration, \(\mu\) is the mobility, and \(E\) is the electric field.

* Enter all values in SI units.

Step 1: Enter Parameters

Example: 1×1021 m\(^{-3}\)

Example: 0.14 m2/V·s

Example: 1000 V/m

Formula: \( J_{drift} = q\,n\,\mu\,E \)


Practical Example:
For example, if \( n = 1 \times 10^{21} \) m\(^{-3}\), \( \mu = 0.14 \) m2/V·s, and \( E = 1000 \) V/m, then:
\[ J_{drift} = 1.602\times10^{-19} \times 1\times10^{21} \times 0.14 \times 1000 \approx 2.243\times10^{4}\, \text{A/m}^{2} \]