Write the formula for the total current in an intrinsic semiconductor.

(N/A) In an intrinsic semiconductor,the total current $I$ is the sum of the electron current $I_e$ and the hole current $I_h$.
The formula is given by:
$I = I_e + I_h$
Since current is defined as $I = n e A v_d$,where $n$ is the charge carrier density,$e$ is the elementary charge,$A$ is the cross-sectional area,and $v_d$ is the drift velocity,the total current can be expressed as:
$I = (n_e e A v_e) + (n_h e A v_h)$
For an intrinsic semiconductor,the electron density $n_e$ is equal to the hole density $n_h$ (let this be $n_i$).
Therefore,the total current is $I = n_i e A (v_e + v_h)$.