Chapter 1, Problem 1.43P

(a) Consider the circuit shown in Figure P1.40. The value of $R_1$ is reduced to $R_1=10\text{k}\Omega$ and the cut-in voltage of the diode is $V_{\gamma }=0.7\text{V}$ . Determine $I_D$ and $V_D$ . (b) Repeat part (a) if $R_1=50\text{k}\Omega$ .

Figure P1.40