QUANTUM MECHANICS 331
Similarly, from the second of(P.5.76.1),
b) Substituting the solutions and into
(S.5.76.1), we obtain the expression for
Taking (S.5.76.6), the analogous expression for gives
Subtracting(S.5.76.7) from (S.5.76.8), we obtain
where So
where
c) The battery current