Question

ÔÚ×ö¡°·ü°²·¨²âÁ¿¶¨Öµµç×衱µÄʵÑéÖУ¬Ð¡Ã÷ͬѧÉè¼ÆÁËÈçͼ¼×ËùʾµÄµç·£¬ÇëÄãÍê³ÉÏÂÁÐÎÊÌâ.

£¨1£©¸ÃʵÑéµÄÔ­ÀíÊÇ_____________________.  
£¨2£©Á¬½Óµç·ʱ£¬Ó¦½«¿ª¹Ø __________£»±ÕºÏ¿ª¹ØÇ°£¬»¬¶¯±ä×èÆ÷µÄ»¬Æ¬Ó¦»¬µ½×î_____ ¶Ë£¨Ìî¡°×ó¡±»ò¡°ÓÒ¡±£©.
£¨3£©Á¬½ÓÍêµç·ºó£¬±ÕºÏ¿ª¹Ø£¬ÎÞÂÛÔõÑùÒƶ¯»¬Æ¬£¬µçÁ÷±íÖ¸Õë¾ùÎÞƫת£¬µçѹ±íµÄÖ¸ÕëÓÐÃ÷ÏÔµÄƫת£¬Õâ¿ÉÄÜÊÇÓÉÓÚ_________¶Ï·Ôì³ÉµÄ.
£¨4£©µ÷½Ú»¬¶¯±ä×èÆ÷£¬°Ñ²âÁ¿µÄ¼¸×éÊý¾ÝÃè³ÉÈçͼÒÒËùʾµÄͼÏó£¬Ôò¸Ãµç×èµÄ×èÖµR=__¦¸.
(5)Íê³ÉÉÏÊöʵÑéºó£¬Ð¡Ã÷»¹Ïë²âÁ¿Ò»¶Îµç¯˿µÄµç×èRx£¬¿ÉÊÇÔÚÁ¬½Óµç·ʱ£¬·¢ÏÖµçÁ÷±íºÍ»¬¶¯±ä×èÆ÷¶¼ÒÑËð»µ. ÓÚÊÇСÃ÷¾ÍÀûÓøղÅÒѲâµÃµÄ¶¨Öµµç×èR£¬ÖØÐÂÉè¼Æ²¢Á¬½ÓÁËÈçͼËùʾµÄµç·.µçÔ´µçѹδ֪ÇҺ㶨²»±ä.
Çë°ÑÏÂÁÐʵÑé²½Öè²¹³äÍêÕû£º
Ö»±ÕºÏ¿ª¹ØS1£¬_________________________________________________£»
_____________________________________________________________£®
µç×è±í´ïʽ£ºRx=______________£®

Answer 1

£¨1£©»òÅ·Ä·¶¨ÂÉ    £¨2£©¶Ï¿ª      ÓÒ    £¨3£©µç×èR    £¨4£©3   
£¨5£©ÊµÑé²½Ö裺
¢Ù¶Á³öµçѹ±íµÄʾÊýΪU1                                 £¨1·Ö£©
¢ÚÔٱպϿª¹ØS2£¬¶Á³öµçѹ±íµÄʾÊýΪU2£»        (·Ö)
µç×èRx±í´ïʽ£º (1·Ö)
»ò

£¨1£©ÊµÑéÔ­Àí£ºR=£»
£¨2£©¢ÙÁ¬½Óµç·ʱ£¬¿ª¹ØÓ¦´¦ÓڶϿª×´Ì¬£¬·ÀÖ¹Á¬½ÓÍê×îºóÒ»¸ùµ¼Ïߣ¬µç·½Óͨ£¬Ëð»µÔª¼þ£»
¢Ú»¬¶¯±ä×èÆ÷½Ó×ó°ë¶Î£¬»¬Æ¬´¦ÓÚÓҶˣ¬»¬¶¯±ä×èÆ÷Á¬Èëµç·µÄµç×è×î´ó£¬µç·µçÁ÷×îС£¬¶Ôµç·Æð±£»¤×÷Óã»
£¨3£©µçÁ÷±íÎÞʾÊý£¬ËµÃ÷µç·¶Ï·£¬µçѹ±íÓÐÃ÷ÏÔƫת£¬¼´µçѹ±í´®ÁªÔÚµç·ÖУ¬¹Êµç×èR¶Ï·£»
£¨4£©ÔÚͼÉÏÈ¡Ò»µã£¬U=1.8V£¬I=0.6A£¬
¸ù¾ÝI=U/R£¬
¹Ê¸Ãµç×èµÄ×èֵΪ£ºR=U/I==3¦¸£»
£¨5£©·ÖÎöµç·ͼ¿ÉÖª£ºRÓëR_X´®Áª£¬Ö»±ÕºÏS₁£¬²âR_XµçѹU₁£»ÔٱպϿª¹ØS₂£¬¶Á³öµçѹ±íµÄʾÊýΪU₂£¬¼´µçÔ´µçѹ£®
¡ßI_X=I£¬¡à=£¬
ËùÒÔ£¬R_X=£®
¹Ê´ð°¸Îª£º£¨1£©R=U/I£»
£¨2£©¶Ï¿ª£»ÓÒ£»
£¨3£©µç×èR£»
£¨4£©3£»£¨5£©