Page 386 - Schaum's Outline of Theory and Problems of Applied Physics

CHAP. 29] ALTERNATING-CURRENT CIRCUITS 371

29.5. 0.796 H

29.6. 424 Hz
29.7. 3183 ;3.183

29.8. 0.796 µF

29.9. 10.6 V

29.10. 531 Hz
29.11. 0.102 A; 0.524 W

29.12. (a) 17.8 µF (b) −48 ◦ (c) 32 W

29.13. 0.72 A; 15.6 W
29.14. (a) 86.6 ; 137.8 mH (b) 86.6 ; 18.4 µF (c) 1 A

29.15. 14 V
29.16. 938 VA

29.17. (a) 0.625 (b) 28.6 µF (c) 1.6 A (d) 192 W
29.18. (a) 800 W (b) 80 percent (c) 30 mH (d) 5 A (e) 1250 W
29.19. (a) 0.69 A (b) 31 ◦ (c) 0.80 A

29.20. (a) 18 (b) 2.5 A (c) 62.5 W (d) 112.5 VA
29.21. (a) 503 Hz (b) 4.5 A (c) 202.5 W (d) 202.5 VA

29.22. (a) 85 (b) 1.41 A (c) 99.4 W (d) 169 VA
29.23. (a) 37.5 Hz (b) 2.4 A (c) 288 W (d) 288 VA
29.24. (a) I C = 0.5A, I R = 10 A (c) 8.9
(b) 1.12 A (d) 27 ;10W
◦
29.25. (a) I L = 0.8A, I R = 1.0A (c) 7.7
(b) 1.3 A (d) −40 ;10W
◦
29.26. (a) 0.960 A; 0.603 A; 0.955 A (c) 23.48 (e) 23 W
(b) 1.022 A (d) I lags V by 20 ◦
29.27. (a) 0.960 A; 1.206 A; 0.477 A (c) 19.91 (e) 23 W
(b) 1.205 A (d) I leads V by 37 ◦

29.28. The ratio of turns is 50:1; the winding with the greater number of turns should be connected to the amplifier since
it has the greater impedance.