Answers to Selected Even-Numbered Problems

Chapter 21

2.  2.81 N
24.  (a) 8.99 x 10-19 N  (b) 625
26.  1.34 x 107 C
54.  0.50 C

Chapter 22

2.  (a)  6.40 x 10-18 N, left  (b) 20 N/C
4.  1.11 x 10-10 C
6.  6.39 x 105 N/C, left

Chapter 23

2. (b) -3.92 N·m2/C
16. 2.04 x 10-6 C/m2

Chapter 24

10. -1.11 x 10-9 C

Chapter 25

8. 7.33 μF
26. (a) 35 pF
      (b) 21 nC
      (c) 6.3 μJ
      (d) 6.0 x 105 V/m
      (e) 1.6 J/m3
36. (a) 6.2 x 10-2 m
      (b) 280 pF

Chapter 26

8.  (a) 6.54 x 10-7 A/m2
16. (b) 8.34 x 107 A
 

Chapter 27

6.  -10 V
14.  (a) 1 kΩ
       (b)  0.30 V
       (c)  0.23 %

Chapter 28.

12. 7.35 x 10-6 V
22. 2.09 x 10-22 J
36. (-2.50 x 10-3 j + 0.750 x 10-3 k) N

Chapter 29.

6. 1.18 x 10-7 T  into the page

Chapter 30

2.  (a) 31 mV
32. (a) 85.2 Wb
      (b) 56.8 V

Chapter 31

2.  4.20 x 10-2 A
6. (a) 89.4 rad/s
    (b) 0.0702 s
    (c) 2.5 x 10-5 F
10. 3.8 x 10-5 H
20. (a) 3.6 x 10-3 H
      (b) 1.33 x 103 Hz
      (c) 1.88 x 10-4 s
28. (a) 0.283 A
      (b) 2.26 A

Chapter 32

42. 25 km