ÌâÄ¿ÄÚÈÝ
£¨2011?ËÞǨÈýÄ££©µç×Ó¼¼ÊõÐËȤС×éΪÁËÑо¿Ä³ÖÖ¶þ¼«¹ÜµÄÌØÐÔ£¬ÓÃÈçͼËùʾµÄµç·²â¶¨¸ÃÔª¼þµÄU-I¹ØϵͼÏߣ®ÊµÑé·¢ÏÖµ±µçÔ´·´½Óʱ£¬µç·ÖÐÎÞµçÁ÷£¬µ±ÕýÏòµçѹ½ÏСʱҲÎÞµçÁ÷£¬¼Ç¼µÄ²¿·ÖÊý¾ÝÈçÏÂ±í£®
£¨1£©Çë¸ù¾ÝÒÔÉÏʵÑéÊý¾ÝÓÃÃèµã·¨ÔÚËù¸øµÄ×ø±êÖ½ÉÏ×÷³öÕâ¸ö¶þ¼«¹ÜµÄU-IͼÏߣ»
£¨2£©¸ù¾ÝÒªÇóÓõ¼ÏßÁ¬½ÓʵÎïµç·£»
£¨3£©ÈôµçÔ´µç¶¯ÊÆΪ6V£¬ÄÚ×è²»¼Æ£¬µ±µçÁ÷±íʾÊýΪ0.012Aʱ£¬»¬¶¯±ä×èÆ÷½ÓÈëµç·µÄµç×èΪ
µçѹ/V | 1.4 | 1.5 | 1.7 | 1.9 | 2.0 | 2.1 | 2.2 | 2.3 | 2.4 | 2.5 |
µçÁ÷/mA | 0 | 0 | 2.0 | 4.0 | 12.0 | 22.0 | 32.0 | 42.0 | 52.0 | 60.0 |
£¨2£©¸ù¾ÝÒªÇóÓõ¼ÏßÁ¬½ÓʵÎïµç·£»
£¨3£©ÈôµçÔ´µç¶¯ÊÆΪ6V£¬ÄÚ×è²»¼Æ£¬µ±µçÁ÷±íʾÊýΪ0.012Aʱ£¬»¬¶¯±ä×èÆ÷½ÓÈëµç·µÄµç×èΪ
33.3
33.3
¦¸£®·ÖÎö£º£¨1£©ÓÉÃèµã·¨½«¸÷µãÔÚ×ø±êÖáÖÐÃè³ö£¬ÔÙÓÉƽ»¬µÄÇúÏß½«¸÷µãÏàÁ¬£»
£¨2£©Óɵç·ͼ¿ÉÖª¸÷ÔªÆ÷¼þµÄÁ¬½Ó·½Ê½£¬ÔòÔÚʵÎïͼÖÐÓõ¼Ïß½«¸÷Ôª¼þÏàÁ¬£¬×¢Òâµ¼ÏßÒª½ÓÔÚ½ÓÏßÖùÉÏ£»
£¨3£©Óɸø³öµÄµçÁ÷¿ÉÒÔ×ø±êÖáÖÐÕÒ³ö¶þ¼«¹ÜÁ½¶ËµÄµçѹ£¬ÔòÓÉ´®Áªµç·¹æÂɿɵóö»¬¶¯±ä×èÆ÷Á½¶ËµÄµçѹ£¬ÔÙÓÉÅ·Ä·¶¨Âɼ´¿ÉÇóµÃ»¬¶¯±ä×èÆ÷µÄ½ÓÈëµç×裮
£¨2£©Óɵç·ͼ¿ÉÖª¸÷ÔªÆ÷¼þµÄÁ¬½Ó·½Ê½£¬ÔòÔÚʵÎïͼÖÐÓõ¼Ïß½«¸÷Ôª¼þÏàÁ¬£¬×¢Òâµ¼ÏßÒª½ÓÔÚ½ÓÏßÖùÉÏ£»
£¨3£©Óɸø³öµÄµçÁ÷¿ÉÒÔ×ø±êÖáÖÐÕÒ³ö¶þ¼«¹ÜÁ½¶ËµÄµçѹ£¬ÔòÓÉ´®Áªµç·¹æÂɿɵóö»¬¶¯±ä×èÆ÷Á½¶ËµÄµçѹ£¬ÔÙÓÉÅ·Ä·¶¨Âɼ´¿ÉÇóµÃ»¬¶¯±ä×èÆ÷µÄ½ÓÈëµç×裮
½â´ð£º½â£º£¨1£©²ÉÓÃÃèµã·¨½«¸÷µã×ø±êÔÚ×ø±êÖÐÃè³ö£¬ÔÙÓÉƽ»¬µÄÇúÏß½«¸÷Á¬Á¬½Ó¼´¿É£»ÈçͼËùʾ£»
£¨2£©Óɵç·ÔÀíͼ¿ÉÖª±¾ÊµÑé²ÉÓô®Áª½Ó·¨£¬½«¸÷Ôª¼þ´®½Óºó£¬ÔÙ½«µçѹ±í²¢ÁªÔÚ¶þ¼«¹ÜÁ½¶Ë¼´¿É£»ÈçͼËùʾ£»
£¨3£©ÓÉͼÏó¿ÉÖª£¬µ±µçÁ÷Ϊ0.012mAʱ£¬¶þ¼«¹ÜÁ½¶ËµÄµçѹΪ2V£¬Ôò»¬¶¯±ä×èÆ÷Á½¶ËµÄµçѹΪ6-2=4V£»
ÔòÓÉÅ·Ä·¶¨ÂÉ¿ÉÖª£¬»¬¶¯±ä×èÆ÷½ÓÈëµç×èR=
=33.3¦¸£»
¹Ê´ð°¸Îª£º£¨1£©£¨2£©ÈçÏÂͼ£»£¨3£©33.3
£¨2£©Óɵç·ÔÀíͼ¿ÉÖª±¾ÊµÑé²ÉÓô®Áª½Ó·¨£¬½«¸÷Ôª¼þ´®½Óºó£¬ÔÙ½«µçѹ±í²¢ÁªÔÚ¶þ¼«¹ÜÁ½¶Ë¼´¿É£»ÈçͼËùʾ£»
£¨3£©ÓÉͼÏó¿ÉÖª£¬µ±µçÁ÷Ϊ0.012mAʱ£¬¶þ¼«¹ÜÁ½¶ËµÄµçѹΪ2V£¬Ôò»¬¶¯±ä×èÆ÷Á½¶ËµÄµçѹΪ6-2=4V£»
ÔòÓÉÅ·Ä·¶¨ÂÉ¿ÉÖª£¬»¬¶¯±ä×èÆ÷½ÓÈëµç×èR=
4 |
0.012 |
¹Ê´ð°¸Îª£º£¨1£©£¨2£©ÈçÏÂͼ£»£¨3£©33.3
µãÆÀ£º±¾Ì⿼²é·ü°²ÌØÐÔµÄͼÏó»·¨¼°ÊµÎïͼµÄÁ¬½Ó£¬×¢ÒâʵÎïͼµÄÁ¬½Ó·½·¨£¬µ¼Ïß²»Äܽ»²æ£¬²¢ÇÒÒª½ÓÔÚ½ÓÏßÖùÉÏ£®
Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿