An abrupt pn junction of the type of has cross-sectional area A 5 (25 m) 3 (50 m) and has been doped with NA 5 1017/cm3 and ND 5 1019/cm3 . (a) Find the amount of charge transferred from the driving...

An abrupt pn junction of the type of has cross-sectional area A 5 (25 m) 3 (50 m) and has been doped with NA 5 1017/cm3 and ND 5 1019/cm3 . (a) Find the amount of charge transferred from the driving source to the junction (or vice versa?) if v is changed from 0 to 21 V. What is the equivalent capacitance Ceq that would cause the same amount of charge transfer? (b) Repeat if v is changed from 21 V to 22 V. (c) Repeat if v is changed from 23 V to 22 V. Compare, and comment.