The electron concentration in an undefined n -type semiconductor is the same as hole concentration in a undefined p -type semiconductor. An external field (electric) is applied across each of them. Compare the currents in them.

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Aicharya · Accepted Answer

Electron's effective mass is smaller than holes therefore mobility of electrons is higher than holes and for equal electric field drift velocity of the electron will be greater compared to holes.

$I = n e A v_{d} I = n e A μ E$

$∵ μ_{e} > μ_{h o l e} so, {(v_{d})}_{e} > {(v_{d})}_{hole} ∴ I_{e} > I_{h o l e}$

The electron concentration in an undefined n -type semiconductor is the same as hole concentration in a…

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