4 ppm means 4atoms per 10 6 atoms then ne 4 10 27 4 10 6

Last updated: 6/25/2023

4 ppm means 4atoms per 10 6 atoms then ne 4 10 27 4 10 6 only na why they are giving like this please explain A pure semiconductor crystal has 4 x 1027 atoms m It is doped by 4 ppm concentration of pentavalent atom The number of holes per m will be n 10 6 m 10 1 m 3 10 m 3 10 m 3 108 m 3 Solution