$(6\mathrm{.}10$ Consider the model in Fig. $6\mathrm{.}11($a$)$ applied in the case of a pnp transistor whose base is grounded, the emitter is fed by a constant$-$current source that supplies a $2-mA$ current into the emitter terminal, and the collector is connected to a $-10-V$ dc supply. Find the emitter voltage, the base current, and the collector current if for this transistor $=50$ and $I_S={10}^{-14}A.$

Ans. $0\mathrm{.}650V$;$39\mathrm{.}2A$;$1\mathrm{.}96mA$