ÌâÄ¿ÄÚÈÝ
¡¾ÌâÄ¿¡¿Ï±íÊÇһ̨µçÈÈË®Æ÷µÄһЩ¼¼Êõ²ÎÊý¡£[ ÒÑÖª£ºcË®£½4.2¡Á103J£¯£¨kg¡¤¡æ£©£»ÌìÈ»ÆøµÄÈÈֵΪ8¡Á107J/m3 ]
ÐͺŠ| FED¡ªH50 | ¶î¶¨µçѹ | 220V |
×î´óË®Á¿ | 50kg | ¶î¶¨¹¦ÂÊ | 2000W |
(1)ÏÖ½«ÈÈË®Æ÷µÄË®Ïä×°ÂúË®£¬Í¨µçºóÕý³£¹¤×÷2400s£¬ÈÈË®Æ÷ÏûºÄµÄµçÄÜÊÇ_______J£»ÕâЩÄÜÁ¿Ï൱ÓÚ_______m3µÄÌìÈ»ÆøÍêȫȼÉշųöµÄÄÜÁ¿£»
(2)´Ë´ÎͨµçʹˮδÓ25¡æÉÏÉýµ½45¡æ£¬Ë®ÏäÖеÄË®ËùÎüÊÕµÄÈÈÁ¿ÊÇ_______J£»
(3)µçÈÈË®Æ÷µÄÈÈЧÂÊÊÇ________¡£
¡¾´ð°¸¡¿4.8¡Á106 0.06 4.2¡Á106 87.5%
¡¾½âÎö¡¿
(1)[1]ͨµçºóÕý³£¹¤×÷2400s£¬ÈÈË®Æ÷ÏûºÄµÄµçÄÜΪ
[2]ÊÍ·ÅÕâЩÄÜÁ¿ÐèÍêȫȼÉÕÌìÈ»ÆøΪ
(2)[3]ʹˮδÓ25¡æÉÏÉýµ½45¡æ£¬Ë®ÏäÖеÄË®ËùÎüÊÕµÄÈÈÁ¿ÊÇ
(3)[4]µçÈÈË®Æ÷µÄÈÈЧÂÊΪ
¡¾ÌâÄ¿¡¿µçѧ֪ʶѧϰ¹ýºó£¬Ð¡ÖéºÍСº£½øÐÐÁËÏà¹ØʵÑ飬ʵÑéÖеçÔ´µçѹ²»±ä£¬R1¡¢R2Ϊ¶¨Öµµç×裬ÆäÖÐ R1 ×èÖµÒÑÖª£¬R2×èֵδ֪£¬µ«Á½Õß×èÖµ²»ÏàµÈ£º
(1)ÀûÓõç·ͼ£¬Ì½¾¿¡°²¢Áªµç·µÄµçÁ÷¹æÂÉ¡±£¬½«Èý¸öµçÁ÷±í·Ö±ð½ÓÈëͼÖÐA¡¢B¡¢C ´¦£¬ÇëÄãÓñʻÏß´úÌæµ¼Ïß½«ÌâͼµÄʵÎïÁ¬½ÓÍê³É£»
£¨__________£©
Á¬½Óµç·ʱ£¬¿ª¹Ø±ØÐë_____£»Ð¡ÖéÁ¬½Óµç·ºóÊÔ´¥Ê±·¢ÏÖ C ´¦µçÁ÷±íÖ¸ÕëÈçͼËùʾ£¬ÄãÈÏΪ¿ÉÄܵÄÔÒòÊÇ_________£»
(2)СÖé¸ÄÕý´íÎóºó£¬ÔٴαպϿª¹Ø£¬C ´¦µçÁ÷±íʾÊýÈçͼËùʾ£¬ÇëÄã°ïÖúÍê³É¼Ç¼£º
A ´¦µçÁ÷ IA/A | B ´¦µçÁ÷ IB/A | C ´¦µçÁ÷ IC/A |
0.40 | 0.50 | _______ |
·ÖÎöÊý¾Ý£¬µÃ³ö½áÂÛ¡£Ð¡º£ÈÏΪ¸ÃʵÑéÓ¦¸Ã¶à´Î²âÁ¿£¬ÔÒòÊÇ_____£»
(3)Ϊ²âÁ¿ R2 ×èÖµ£¬Ð¡Öé¸Ä×°ÁËʵÑéµç·£¬ÊµÑé²½ÖèÈçÏ£º
¢Ù±ÕºÏ¿ª¹Ø S£¬¶Ï¿ª¿ª¹ØS1£¬¼Ç¼µçÁ÷±íʾÊý I1£»
¢Ú±ÕºÏ¿ª¹Ø S ºÍS1£¬¼Ç¼µçÁ÷±íʾÊý I2£»
¢Û·ÖÎöÊý¾ÝµÃÖªµçÔ´µçѹ U=I1R1£¬½ø¶øÇóµÃ R2×èÖµ¡£
ͨ¹ý·ÖÎö£¬ÏÂÁÐÁ½¸öʵÑéµç·ÖУ¬ÄãÈÏΪСÖéËùʹÓõÄÊÇ_____£¨Ñ¡ÌîÏàӦѡÏî×Ö Ä¸£©£¬ÇóµÃ R2=_____£¨Óà R1¡¢I1¡¢I2±íʾ£©¡£