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3. V=12V for all resistors

   I=5mA

4. V1 = V2 = V3 = 100V

5. I=1.35A

6. 175mA

7. R2=R3=7.5mA

8. 557k Ohms

9. a) 25.6 Ohms

   b) 359 Ohms
   c) 819 Ohms
   d) 996 Ohms

10. a) 1.5k Ohms

    b) 18.2 Ohms
    c) 892 Ohms

11. 2k Ohms

12. 1.58 Ohms

13. a) 909mA

    b) 76mA

14. 10A

15. Circuit A has more current

16. 8k Ohms

17. IR1= 2.19A

    IR2= 811mA

18. a) IR1 = 6.88 micro A

       IR2 = 3.12 micro A

    b) IR1 = 5.16mA
       IR2 = 2.35mA
       IR3 = 1.56mA
       IR4 = 0.92mA

19. 200mW

20. a) 69 mirco W

    b) 51.6 mW

21. Each bulb = 682mA

    Total Current = 4.09A

27. VS = 50mV

    R2 = 25 Ohms
    R3 = 100 Ohms
    R4 = 12.5 Ohms

29. IR = 4.8A

     I2R = 2.4A
     I3R = 1.6A
     I4R = 1.2A

31. a) I2 = 50mA

       R1 = 100 Ohms
       R2 = 200 Ohms

    b)I2 = 74.9mA
      I1 = 125mA
      VS = 10V
      R1 = 80 Ohms
      R2 = 134 Ohms
    c)I3 = 100mA
      I2 = 147mA
      I1 = 253mA
      R1 = 395Ohms

33. R2 = 53.7

35. IT=64.2uA

    IA = 1.08A