ÌâÄ¿ÄÚÈÝ
¡¾ÌâÄ¿¡¿Ð¡Ã÷ºÍÂèÂèÒ»ÆðÈ¥É̳¡Ñ¡¹ºÁË¡°ÑÇÃ×ÅÆ¡±È«×Ô¶¯¶¹½¬»ú£¬»Øµ½¼Ò£¬ËûÂíÉÏÔĶÁÁËʹÓÃ˵Ã÷Ê飬Á˽âÁ˶¹½¬»úµÄÖ÷Òª½á¹¹£¨Èçͼ¼×£©¡¢Ê¹Ó÷½·¨¼°×¢ÒâÊÂÏ²¢¹Û²ìÁ˶¹½¬»úÃúÅÆ£¨Èçͼ±û£©£¬µç·ÔÀíͼ¿ÉµÈЧ³ÉͼÒÒ£®Ï±íÊǶ¹½¬»úÕý³£¹¤×÷×öÒ»´Î¶¹½¬µÄ¹ý³ÌÖеçÈȹܺ͵綯»ú¹¤×÷ʱ¼äÓë¶ÔÓ¦µÄ¹¤×÷״̬£®ÇëÄã°ïСÃ÷½â¾öÏÂÁÐÎÊÌ⣺
¹¤×÷ʱ¼ä£¨min£© | 0¡«1 | 1¡«5 | 5¡«6 | 6¡«10 |
¹¤×÷״̬ | ·ÛËé´ò½¬ | ¼ÓÈÈ | ·ÛËé´ò½¬ | ¼ÓÈÈ |
£¨1£©¶¹½¬»úÕý³£¹¤×÷µçÈÈË¿µç×èÊǶàÉÙ£¿
£¨2£©¶¹½¬»úÕý³£¹¤×÷×öÒ»´Î¶¹½¬£¬µçÁ÷×ö¹¦¶àÉÙ½¹£¿
£¨3£©Ð¡Ã÷ÏëÁ˽â¼ÒÀïµç·µÄʵ¼Êµçѹ£¬ÓÚÊǽ«¼ÒÀïµÄÆäËüÓõçÆ÷¶¼¹Ø±Õ£¬Ëû¹Û²ìµ½¶¹½¬»úµÄµçÈÈË¿¹¤×÷ʱ£¬¼ÒÀï±êÓС°2000r/kWh¡±×ÖÑùµÄµçÄܱíתÅÌÔÚ3minÄÚתÁË50ת£¬ÔòËû¼Òµç·µÄʵ¼ÊµçѹÊǶàÉÙ£¿£¨²»¿¼ÂÇζȶԵç×èµÄÓ°Ï죩
¡¾´ð°¸¡¿
£¨1£©½â£ºµçÈÈË¿µç×èR= = =80¦¸
£¨2£©½â£ºÓÉͼÏó¿ÉÖª£¬¶¹½¬»úÕý³£¹¤×÷Ò»´Îµç¶¯»ú¹¤×÷ʱ¼ät1=2min£¬µçÈȹܹ¤×÷ʱ¼ät2=8min£¬
¶¹½¬»úÕý³£¹¤×÷×öÒ»´Î¶¹½¬£¬µçÁ÷×ö¹¦£º
W=P1t1+P2t2=100W¡Á2¡Á60s+605W¡Á8¡Á60s=3.024¡Á105J
£¨3£©½â£º¶¹½¬»ú3minÄÚÏûºÄµÄµçÄÜ
Wʵ= kWh¡Á50= kWh=9¡Á104J£¬
¶¹½¬»úʵ¼Ê¹¦ÂÊ£ºPʵ= = =500W£¬
µç·ʵ¼Êµçѹ£ºUʵ= = =200V
¡¾½âÎö¡¿£¨1£©´Ó±íÖпÉÒÔ¿´³ö¶¹½¬»úÕý³£¹¤×÷ʱµÄ×î´ó¹¦ÂÊ£¬¸ù¾Ý¹«Ê½R= ¿ÉÇóµçÈÈË¿µç×裮£¨2£©ÒÑÖªµç¶¯»úµÄ¹¦ÂʺͼÓÈȵŦÂÊ£¬´Ó±í¸ñÖпÉÒÔ¿´³ö¸÷×Եĸ÷×Ôʱ¼ä£¬¸ù¾Ý¹«Ê½W=Pt¿ÉÇóÏûºÄµÄµçÄÜ£®£¨3£©ÒÑÖªµçÄܱíÿÏûºÄ1kwhµÄµçÄÜתÅ̾Íת¶¯2000r£¬¿ÉÇóת50תÏûºÄµÄµçÄÜ£¬ÒÑÖª¹¤×÷ʱ¼ä£¬¸ù¾Ý¹«Ê½W=Pt¿ÉÇ󶹽¬»úµÄʵ¼Ê¹¦ÂÊ£¬ÀûÓù«Ê½R= Çó³ö´Ëʱµç·µÄʵ¼Êµçѹ£®
¡¾ÌâÄ¿¡¿ÔÚ¡°Ì½¾¿¸Ü¸ËµÄƽºâÌõ¼þ¡±ÊµÑéÖУº
£¨1£©°²×°ºÃ¸Ü¸Ë£¬·¢ÏָܸËÈçͼaËùʾ£¬Ó¦°Ñ¸Ü¸ËÓҶ˵ÄƽºâÂÝĸÏòµ÷½Ú£¨Ñ¡Ìî¡°×ó¡°»ò¡°ÓÒ¡±£©£¬Ê¹¸Ü¸ËÔÚˮƽλÖÃƽºâ£¬´Ëʱ¸Ü¸Ë×ÔÉíÖØÁ¦µÄÁ¦±ÛΪ £®
£¨2£©ÈçͼbËùʾ£¬ÔÚAλÖÃÉϹÒÁ½¸öÏàͬ¹³Â룬Ӧ¸ÃÔÚBλÖùÒÉϸöͬÑùµÄ¹³Â룬²ÅÄÜʹ¸Ü¸ËÔÚˮƽλÖÃƽºâ£®
£¨3£©ÈçͼcËùʾ£¬µ¯»É²âÁ¦¼ÆÓÉÊúÖ±·½ÏòÖð½¥Ïò×óת¶¯£¬¸Ü¸ËʼÖÕ±£³Öˮƽƽºâ£¬Ôòµ¯»É²âÁ¦¼ÆµÄʾÊý½«£¨Ñ¡Ìî¡°±ä´ó¡±¡¢¡°±äС¡±»ò¡°²»±ä¡±£©£®
£¨4£©Èç±íÊÇСºìʵÑéµÃµ½µÄÊý¾Ý£¬¾Ý´Ë·ÖÎö¿ÉÒÔ·¢ÏÖÕâ´ÎʵÑé²»Í×Ö®´¦
ʵÑé´ÎÊý | ¶¯Á¦£¨F1/N£© | ¶¯Á¦±Û£¨l1/cm£© | ×èÁ¦£¨F2/N£© | ×èÁ¦±Û£¨l2/cm£© |
1 | 1.5 | 10 | 3.0 | 5 |
2 | 1.0 | 20 | 2.0 | 10 |
3 | 1.0 | 30 | 2.0 | 15 |