Chapter 5, Problem 38P

1. Design the circuit in Fig. 5.124 such that $V{R}_2=3V_{R_1}$
2. and $V_{R_3}=4V_{R_2}$
3. if the current is reduced to $10\mu \text{A}$
4. what are the new values of $R_1,R_2,$
5. and $R_3$
6. How do they compare to the results of part (a)?