1、 2014-2015 90 100 1. I II 8 2. I II I 44 22 44 2 1. A 10dm B 40 C 1.5V D 25w 2. A B C D 3. A 0 B C 0 0 D 4. A B C D 5. A B C D 6. S1 S2 S1 S2 7. A B C D 8. 9. A. B. C. D. 10. A B 5 l0 ( ) A B C D 11. S L1 L2 A L2 B L2 C L2 D L2 12. A B C D : # # Z#X#X#K 13.POS POS POS POS POS 11 14. S P A B C D 15.
2、A B C D 16. S L S L R A L B L C R D R 17. , , P , : A. S B. + C. , D. P , 18. U-I A B 2V R C 0.2A 2V D 2V 1.2W 19. A B C D 20. , S , L1 L2 2:3 18 14 L1 L2 : _ _ A. 2: 1 B. 1:2 C. 3: 2 D.2: 3 21. R0 Rx 22. P P II 56 二、 填 空题 2 10 23. 23 24 25 24. 0.2A 1min J 25. , , 4.2 10 3 J/ kg J/(kg ) 26. 3200 imp
3、/kwh , 1kWh 3200 , 4min 320 W 27. 28 29 2 4 28. B 29. S 1 S 2 30 6 31 5 32 10 21 ) 30. 1 2 3 A B C D : 4 5 31. 2 I1 3 4 32. a 3.8V 1 a 2 3 3.0V b W 4 R0 P ( 33 5 34 6 35 10 21 ) 33. 50kg 10 50 4.2 10 3 J/ kg 1 2 2.8 10 7 J 3 2.8 10 7 J 3.5 10 7 J/kg 34. 6V 9W L R 6V S 2.25A 1 R 2 L R L 35. R1 R2 S1
4、220V 30min (1)S S1 (2) R2 (3) 30min 2014-2015 2 44 1 2 3 4 5 6 7 8 9 10 11 C D B D A D C C B C D 12 13 14 15 16 17 18 19 20 21 22 A C B D A D D A B C D 2 10 23 24 2400 25 2.1 10 3 26 1500 27 28 29 2 4 28. 29. 30 6 31 5 32 10 21 ) 30. 1 2 3 B (4) (5) 31. 1 2 3 4 32. 1 2 3 1.52 4 a. S1,S2 1 3.8V b. S2
5、 2 U 0 ) 8 . 3 ( 8 . 3 R U ( 33 5 34 6 35 10 21 ) 33. 1 Q =cm t t0 3 J/ kg 50 10 6 J-2 2 6 7 8.4 10 = 30% 2.8 10 Q J QJ -1 3 Q =mq 7 7 2.8 10 = 0.8 3.5 10 / Q J m kg q J kg -2 34. : :Zxxk.Com (1) U=6V L L 9 1.5 6 L P W IA UV -1 I=2.25A R 2.25 1.5 0.75 R I A A A -1 6 8 0.75 R UV R IA -1 (2) 2 U P R 2
6、 2 4 9 L U R PW 6V -1 L R 6 = 0.5 48 L U U V IA R R R -1 L 22 = (0.5A) 4 1 L P I R W -1 35. (1)S S1 R1 R2 I 3A P UI 660W -3 (2)S S1 R1 I1 2A R1 P1 UI1 440W -2 R2 P2 P P1 660W 440W 220W R2 R2 U 2 P2 220 V 2 220 W -2 (3) 30min S S1 15min,S S1 15min , 30min : Q Pt1 P1t2 660W 15 60s 440W1560s 9.910 5 J-3
