Physics · PYQ NEET UG 2021
हिन्दीThe electron concentration in an n-type semiconductor is the same as hole concentration in a p-type semiconductor. An external field (electric) is applied across each of them. Compare the currents in them.
Correct answer · Option 2
Current in n-type > current in p-type
Explanation
Current \( I = neAv_d = neA\mu E \). Since electron mobility \( \mu_e \) is greater than hole mobility \( \mu_h \), the current in the n-type semiconductor is greater than that in the p-type semiconductor.