9.3 A Si sample is doped to 2.5x1016 cm with P (phosphorus) not P-type. a. Where does Ef lie with respect to E; (the intrinsic level)? b. Which band edge is nearest to EF (Enter Cor V), and: C. How far is Ef from that band (Er-E3)? d. Which carriers are the minority carriers? (Enter e or h) e. And what is their density