Example $3\mathrm{.}7.$ For the transistor circuit of Fig. $3-8($a$),R_1=1k,R_2=20k,R_C=3k,R_E=10,$ and $V_{CC}=15V.$ If the transistor is the generic $npn$ transistor of Example $3\mathrm{.}3,$ use SPICE methods to determine the quiescent values $I_{BQ},V_{\text{B}\text{E}\text{Q}},I_{CQ},$ and $V_{\text{C}\text{E}\text{Q}}.$

The netlist code below models the circuit.

$($a$)$

$80$

CHARACTERISTICS OF BIPOLAR JUNCTION TRANSISTORS

$[$CHAP$.3$