railway RRB Technician Grade 1 Mock Test 2024 Electronic Devices Carrier Transport Degenerate and Non-Degenerate Semiconductors
If the excess carrier concentration is 1015 cm-3 and the minority carrier lifetime is 1 μs, then the excess carrier recombination rate is
1
1019 cm-3 s-1
2
1020 cm-3 s-1
3
1021 cm-3 s-1
4
1022 cm-3 s-1