Èçͼ¼×ËùʾΪһºÚÏä×°Ö㬺ÐÄÚÓеçÔ´¡¢µç×èµÈÔª¼þ£¬a¡¢bΪºÚÏäµÄÁ½¸öÊä³ö¶Ë£®
£¨1£©ÎªÁË̽²âºÚÏ䣬ijͬѧ½øÐÐÁËÒÔϼ¸²½²âÁ¿£º
¢ÙÓöàÓõç±íµÄµç×èµ²²âÁ¿a¡¢b¼äµÄµç×裻
¢ÚÓöàÓõç±íµÄµçѹµ²²âÁ¿a¡¢b¼äµÄÊä³öµçѹ£»
¢ÛÓöàÓõç±íµÄµçÁ÷µ²²âÁ¿a¡¢b¼äµÄÊä³öµçÁ÷£®
ÄãÈÏΪÒÔÉϲâÁ¿Öв»Í×µÄÓУº
 
£¨ÌîÐòºÅ£©£¬ÀíÓÉÊÇ£º
 

£¨2£©º¬ÓеçÔ´µÄºÚÏäÏ൱ÓÚÒ»¸ö¡°µÈЧµçÔ´¡±£¬a¡¢bÊǵÈЧµçÔ´µÄÁ½¼«£®ÎªÁ˲ⶨÕâ¸öµÈЧµçÔ´µÄµç¶¯ÊƺÍÄÚ×裬¸ÃͬѧÉè¼ÆÁËÈçͼÒÒËùʾµÄµç·£¬µ÷½Ú±ä×èÆ÷µÄ×èÖµ£¬¼Ç¼Ïµçѹ±íºÍµçÁ÷±íµÄʾÊý£¬²¢ÔÚ·½¸ñÖ½ÉϽ¨Á¢ÁËU-I×ø±ê£¬¸ù¾ÝʵÑéÊý¾Ý»­³öÁË×ø±êµã£¬Èçͼ±ûËùʾ£®ÇëÄã×÷½øÒ»²½´¦Àí£¬²¢ÓÉͼÇó³öµÈЧµçÔ´µÄµç¶¯ÊÆE=
 
V£¬ÄÚ×èr=
 
¦¸£®
£¨3£©ÓÉÓÚµçѹ±íºÍµçÁ÷±íµÄÄÚ×裬»á²úÉúϵͳÎó²î£¬Ôò²ÉÓô˲âÁ¿µç·Ëù²âµÃµÄµç¶¯ÊÆÓëʵ¼ÊÖµÏà±È
 
£¬²âµÃµÄÄÚ×èÓëʵ¼ÊÖµÏà±È
 
£¨Ìî¡°Æ«´ó¡±¡¢¡°Æ«Ð¡¡±ºÍ¡°Ïàͬ¡±£©£®
¾«Ó¢¼Ò½ÌÍø
·ÖÎö£º£¨1£©¶àÓõç±í²»ÄÜÓõç×èµ²Ö±½Ó²âº¬Ô´µç·µÄµç×裬ÓöàÓõç±íµÄµçÁ÷µµ²âÁ¿a¡¢b¼ä¿ÉÄÜ»áÔì³É¶Ì·£®
£¨2£©²ÉÓÃÃèµã·¨×÷ͼ£¬ÓÉͼ¿ÉÖª£¬Í¼ÏóÓÉ×Ý×ø±êµÄ½»µãΪµç¶¯ÊÆ£»ÓÉͼÏóÓëºá×ø±êµÄ½»µãÀûÓñպϵç·ŷķ¶¨ÂÉ¿ÉÇóµÃÄÚµç×裮
µçѹ±í²âÁ¿ÎªµçÔ´µÄÊä³öµçѹ£¬µçѹ±íʾÊýûÓÐÎó²î£¬µ«µçÁ÷±í²âÁ¿µÄÈ´ÊÇÍâµç·ÖÐÒ»²¿·Öµç·ÖеĵçÁ÷£¬¹Ê¿ÉÖªÎó²îÀ´×ÔÓÚµçѹ±íµÄ·ÖÁ÷£»
½â´ð£º½â£º£¨1£©¶àÓõç±í²»ÄÜÓõç×èµ²Ö±½Ó²âº¬Ô´µç·µÄµç×裬ÓöàÓõç±íµÄµçÁ÷µµ²âÁ¿a¡¢b¼ä¿ÉÄÜ»áÔì³É¶Ì·£®
ÓöàÓõç±íµÄµçѹµµ²âÁ¿a¡¢b¼äµÄÊä³öµçѹÊÇ¿ÉÒԵģ¬¹ÊÑ¡¢Ú
£¨2£©ÓÉU-Iͼ¿ÉÖª£¬
¾«Ó¢¼Ò½ÌÍø
µçÔ´µÄµç¶¯ÊÆE=1.45V
·¶ËµçѹΪ1Vʱ£¬µçÁ÷Ϊ0.6A£¬ÔòÓɱպϵç·ŷķ¶¨ÂÉ¿ÉÖª£ºr=
E-U
I
=0.75¦¸
£®
£¨3£©¸ÃʵÑéµÄϵͳÎó²îÖ÷ÒªÊÇÓɵçѹ±íµÄ·ÖÁ÷£¬µ¼ÖµçÁ÷±í²âÁ¿µÄµçÁ÷СÓÚͨ¹ýµçÔ´µÄÕæʵµçÁ÷£»
ÀûÓõÈЧµçÔ´·ÖÎö£¬¼´¿É½«µçѹ±íµÈЧΪµçÔ´ÄÚ×裬²âʵÑéÖвâ³öµÄµç¶¯ÊÆӦΪµÈЧµç×èÊä³öµÄµçѹ£¬
ÓÉͼ¿ÉÖª£¬Êä³öµçѹСÓÚµçÔ´µÄµç¶¯ÊÆ£»¹Ê¿ÉÖªµç¶¯ÊƵIJâÁ¿ÖµÐ¡ÓÚÕæʵֵ£»ÊµÑéÖвâ³öµÄÄÚ×èӦΪʵ¼ÊµçÔ´ÄÚ×èºÍµçѹ±íÄÚ×è²¢ÁªµÄµÈЧµç×裬
ËùÒÔ²âµÃµÄÄÚ×èÓëʵ¼ÊÖµÏà±ÈƫС£®
¹Ê´ð°¸Îª£º£¨1£©¢Ù¡¢¢Û
¢ÙÖв»ÄÜÓõç×èµµÖ±½Ó²âÁ¿º¬Ô´µç·µÄµç×裻
¢ÛÖпÉÄÜ»áÔì³É¶Ì·
   £¨2£©1.45£¨¡À0.02£©0.73£¨¡À0.02£©
£¨3£©Æ«Ð¡  ƫС
µãÆÀ£º±¾Ì⿼²é²âÁ¿µç¶¯ÊƺÍÄÚµç×èʵÑéµÄÊý¾ÝµÄ´¦Àí£¬ÒªÇóÄÜÕýÈ··ÖÎöÎó²îµÄÀ´Ô´£¬²¢ÄÜÓÃͼÏó·¨Çó³öµçÊƺÍÄÚµç×裮
Á·Ï°²áϵÁдð°¸
Ïà¹ØÏ°Ìâ

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

Èçͼ¼×ËùʾΪһºÚÏä×°Ö㬺ÐÄÚÓеçÔ´¡¢µç×èµÈÔª¼þ£¬a¡¢bΪºÚÏäµÄÁ½¸öÊä³ö¶Ë£®º¬ÓеçÔ´µÄºÚÏäÏ൱ÓÚÒ»¸ö¡°µÈЧµçÔ´¡±£¬a¡¢bÊǵÈЧµçÔ´µÄÁ½¼«£®

£¨1£©ÎªÁ˲ⶨÕâ¸öµÈЧµçÔ´µÄµç¶¯ÊƺÍÄÚ×裬¸ÃͬѧÉè¼ÆÁËÈçͼÒÒËùʾµÄµç·£¬µ÷½Ú±ä×èÆ÷µÄ×èÖµ£¬¼Ç¼Ïµçѹ±íºÍµçÁ÷±íµÄʾÊý£¬²¢ÔÚ·½¸ñÖ½ÉϽ¨Á¢ÁËU-I×ø±ê£¬¸ù¾ÝʵÑéÊý¾Ý»­³öÁË×ø±êµã£¬Èçͼ±ûËùʾ£®ÇëÄãÍê³ÉU-IͼÏߣ¬²¢ÓÉͼÏßÇó³öµÈЧµçÔ´µÄµç¶¯ÊÆE=
1.45
1.45
V£¬ÄÚ×èr=
0.75
0.75
¦¸£®
£¨2£©ÓÉÓÚµçѹ±íºÍµçÁ÷±íÄÚ×èµÄÓ°Ïì²»¿ÉºöÂÔ£¬Ôò²ÉÓô˲âÁ¿µç·Ëù²âµÃµÄµç¶¯ÊÆÓëʵ¼ÊÖµÏà±È
ƫС
ƫС
£¬²âµÃµÄÄÚ×èÓëʵ¼ÊÖµÏà±È
ƫС
ƫС
£¨Ìî¡°Æ«´ó¡±¡¢¡°Æ«Ð¡¡±»ò¡°Ïàͬ¡±£©£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

Èçͼ¼×ËùʾΪһºÚÏä×°Ö㬺ÐÄÚÓеçÔ´¡¢µç×èµÈÔª¼þ£¬a¡¢bΪºÚÏäµÄÁ½¸öÊä³ö¶Ë£®
¢ÙΪÁË̽²âºÚÏ䣬ÓÐÒÔϼ¸ÖÖ²âÁ¿£º
A£®ÓöàÓõç±íµÄµç×èµ²²âÁ¿a¡¢b¼äµÄµç×裻
B£®ÓöàÓõç±íµÄµçѹµ²²âÁ¿a¡¢b¼äµÄÊä³öµçѹ£»
C£®ÓöàÓõç±íµÄµçÁ÷µ²²âÁ¿a¡¢b¼äµÄÊä³öµçÁ÷£®ÄãÈÏΪÊ×ÏÈÓ¦¸Ã²ÉÈ¡µÄ²âÁ¿ÊÇ£º
B
B
£¨ÌîÐòºÅ£©
¢Úº¬ÓеçÔ´µÄºÚÏäÏ൱ÓÚÒ»¸ö¡°µÈЧµçÔ´¡±£¬a¡¢bÊǵÈЧµçÔ´µÄÁ½¼«£®ÎªÁ˲ⶨÕâ¸öµÈЧµçÔ´µÄµç¶¯ÊƺÍÄÚ×裬¸ÃͬѧÉè¼ÆÁËÈçͼÒÒËùʾµÄµç·£¬µ÷½Ú±ä×èÆ÷µÄ×èÖµ£¬¼Ç¼Ïµçѹ±íºÍµçÁ÷±íµÄʾÊý£¬²¢ÔÚ·½¸ñÖ½ÉϽ¨Á¢ÁËU-I×ø±ê£¬¸ù¾ÝʵÑéÊý¾Ý»­³öÁË×ø±êµã£¬Èçͼ±ûËùʾ£®ÇëÄã×÷½øÒ»²½´¦Àí£¬²¢ÓÉͼÇó³öµÈЧµçÔ´µÄµç¶¯ÊÆE=
1.45
1.45
V£¬ÄÚ×èr=
0.75
0.75
¦¸£®

¢ÛÓÉÓÚµçѹ±íºÍµçÁ÷±íµÄÄÚ×裬»á²úÉúϵͳÎó²î£¬Ôò²ÉÓô˲âÁ¿µç·Ëù²âµÃµÄµç¶¯ÊÆÓëʵ¼ÊÖµÏà±È
ƫС
ƫС
£¬²âµÃµÄÄÚ×èÓëʵ¼ÊÖµÏà±È
ƫС
ƫС
£¨Ìî¡°Æ«´ó¡±¡¢¡°Æ«Ð¡¡±ºÍ¡°Ïàͬ¡±£©£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

Èçͼ¼×ËùʾΪһºÚÏä×°Ö㬺ÐÄÚÓеçÔ´¡¢µç×èµÈÔª¼þ£¬a¡¢bΪºÚÏäµÄÁ½¸öÊä³ö¶Ë£®
£¨1£©ÎªÁË̽²âºÚÏ䣬СÃ÷½øÐÐÁËÒÔϼ¸²½²âÁ¿£º
¢ÙÓöàÓõç±íµÄµç×èµ²²âÁ¿a¡¢b¼äµÄµç×裻
¢ÚÓöàÓõç±íµÄµçѹµ²²âÁ¿a¡¢b¼äµÄÊä³öµçѹ£»
¢ÛÓöàÓõç±íµÄµçÁ÷µ²²âÁ¿a¡¢b¼äµÄÊä³öµçÁ÷£®
ÄãÈÏΪÒÔÉϲâÁ¿Öв»Í×µÄÓУº
 
£¨ÌîÐòºÅ£©£¬ÀíÓÉÊÇ£º
 
£®
£¨2£©º¬ÓеçÔ´µÄºÚÏäÏ൱ÓÚÒ»¸öµÈЧµçÔ´£¨a¡¢bÊǵçÔ´µÄÁ½¼«£©£¬Ð¡Ã÷Ïë²â¶¨Õâ¸öµÈЧµçÔ´µÄµç¶¯ÊƺÍÄÚ×裬Éè¼ÆÁËÈçͼÒÒËùʾµÄ²âÁ¿µç·£¬´Ëµç·ͬʱÄܲâ³öµç×èR0µÄ×èÖµ£®Ð¡Ã÷½«»¬¶¯±ä×èÆ÷µÄ»¬Æ¬Òƶ¯µ½²»Í¬Î»ÖÃʱ£¬¼Ç¼ÁËÈý¸öµç±íµÄһϵÁÐʾÊý£®¼Ç¼ÔÚÏÂÃæÁ½¸ö±í¸ñÖУ®
±í¸ñÒ»
µçѹ±íʾÊý/V 1.21 0.90 0.60 0.29 0
µçÁ÷±íʾÊý/A 0.10 0.20 0.30 0.40 0.50
±í¸ñ¶þ
µçѹ±íʾÊý/V 1.40 1.31 1.22 1.08 1.00
µçÁ÷±íʾÊý/A 0.10 0.20 0.30 0.40 0.50
¢ÙÔÚͼÒÒµÄ×ø±êÖ½Öзֱð×÷³öR0µÄU-IͼÏóºÍµçÔ´µÄU-IͼÏó£®
¾«Ó¢¼Ò½ÌÍø
¢Ú¸ù¾Ý×÷³öµÄͼÏó¿ÉÒÔÇó³ö¶¨Öµµç×èR0=
 
¦¸£¬µçÔ´µç¶¯ÊÆE=
 
V£¬ÄÚµç×èr=
 
¦¸
¢ÛÈôʵÑéÖеÄËùÓвÙ×÷ºÍÊý¾Ý´¦ÀíÎÞ´íÎó£¬ÊµÑéÖвâµÃµÄ¶¨Öµµç×èR0Öµ
 
ʵ¼ÊÖµ£»²âµÃµÄµçÔ´µç¶¯ÊÆEµÄÖµ
 
ʵ¼ÊÖµ£¬ÄÚ×èrµÄ²âÁ¿Öµ
 
ʵ¼ÊÖµ£¨ºáÏßÉÏÑ¡Ìî¡°´óÓÚ¡¢µÈÓÚ¡¢Ð¡ÓÚ¡±£©£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

¾«Ó¢¼Ò½ÌÍøÈçͼ¼×ËùʾΪһºÚÏä×°Ö㬺ÐÄÚÓÐÁ½½Ú¸Éµç³ØºÍ¼¸¸öµç×èµÈÔª¼þ×é³ÉµÄµç·£¬a¡¢bΪºÚÏäµÄÁ½¸öÊä³ö¶Ë£¬a¶ËÁ¬½ÓºÐÄÚµç³ØµÄÕý¼«£®
£¨1£©ÎªÁË̽²âºÚÏ䣬ijͬѧ׼±¸½øÐÐÁËÒÔϼ¸²½²âÁ¿£º
¢ÙÓöàÓõç±íµÄµç×èµ²²âÁ¿a¡¢b¼äµÄµç×裮
¢ÚÓöàÓõç±íµÄÖ±Á÷µçѹµ²²âÁ¿a¡¢b¼äµÄÊä³öµçѹ£®
¢ÛÓöàÓõç±íµÄÖ±Á÷µçÁ÷µ²²âÁ¿a¡¢b¼äµÄÊä³öµçÁ÷£®
ÄãÈÏΪÒÔÉϲâÁ¿Öв»Í×µÄÓУº
 
£¨ÌîÐòºÅ£©£¬ÀíÓÉÊÇ£º
 
£®
£¨2£©ºÚÏäÄڵĵç·¿É¿´³ÉÒ»¸ö¡°µÈЧµçÔ´¡±£¬a¡¢bÊǵÈЧµçÔ´µÄÁ½¼«£®ÎªÁ˲ⶨÕâ¸öµÈЧµçÔ´µÄµç¶¯ÊƺÍÄÚ×裬¸ÃͬѧÉè¼ÆÁËÈçͼÒÒËùʾµÄµç·£¬µ÷½Ú»¬¶¯±ä×èÆ÷µÄ×èÖµ£¬¼Ç¼Ïµçѹ±íºÍµçÁ÷±íµÄʾÊý£¬²¢ÔÚ·½¸ñÖ½ÉϽ¨Á¢ÁËU-I×ø±ê£¬¸ù¾ÝʵÑéÊý¾Ý»­³öÁË×ø±êµã£¬Èçͼ±ûËùʾ£®ÇëÄã×÷½øÒ»²½´¦Àí£¬²¢ÓÉͼÇó³öµÈЧµçÔ´µÄµç¶¯ÊÆE=
 
V£¬ÄÚ×èr=
 
¦¸£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

¾«Ó¢¼Ò½ÌÍø£¨1£©¶àÓõç±íÊÇʵÑéÊÒºÍÉú²úʵ¼ÊÖг£ÓõÄÒÇÆ÷£®Ê¹ÓöàÓõç±í½øÐÐÁËÁ½´Î²âÁ¿£¬Ö¸ÕëËùÖ¸µÄλÖ÷ֱðÈçͼÖÐa¡¢bËùʾ£®ÈôÑ¡Ôñ¿ª¹Ø´¦ÔÚ¡°¡Á10¦¸¡±µÄµç×赵ʱָÕëλÓÚa£¬Ôò±»²âµç×èµÄ×èÖµÊÇ
 
¦¸£®ÈôÑ¡Ôñ¿ª¹Ø´¦ÔÚ¡°Ö±Á÷µçѹ2.5V¡±µµÊ±Ö¸ÕëλÓÚb£¬Ôò±»²âµçѹÊÇ
 
V£» 
£¨2£©Èçͼ¼×ËùʾΪһºÚÏä×°Ö㬺ÐÄÚÓеçÔ´¡¢µç×èµÈÔª¼þ£¬a¡¢bΪºÚÏäµÄÁ½¸öÊä³ö¶Ë£®
¾«Ó¢¼Ò½ÌÍø
¢ÙΪÁË̽²âºÚÏ䣬ijͬѧ½øÐÐÁËÒÔϼ¸²½²âÁ¿£º
A£®ÓöàÓõç±íµÄµç×èµ²²âÁ¿a¡¢b¼äµÄµç×裻
B£®ÓöàÓõç±íµÄµçѹµ²²âÁ¿a¡¢b¼äµÄÊä³öµçѹ£»
C£®ÓöàÓõç±íµÄµçÁ÷µ²²âÁ¿a¡¢b¼äµÄÊä³öµçÁ÷£®
ÄãÈÏΪÒÔÉϲâÁ¿Öв»Í×µÄÓУº
 
£¨ÌîÐòºÅ£©
¢Úº¬ÓеçÔ´µÄºÚÏäÏ൱ÓÚÒ»¸ö¡°µÈЧµçÔ´¡±£¬a¡¢bÊǵÈЧµçÔ´µÄÁ½¼«£®ÎªÁ˲ⶨÕâ¸öµÈЧµçÔ´µÄµç¶¯ÊƺÍÄÚ×裬¸ÃͬѧÉè¼ÆÁËÈçͼÒÒËùʾµÄµç·£¬µ÷½Ú±ä×èÆ÷µÄ×èÖµ£¬¼Ç¼Ïµçѹ±íºÍµçÁ÷±íµÄʾÊý£¬²¢ÔÚ·½¸ñÖ½ÉϽ¨Á¢ÁËU-I×ø±ê£¬¸ù¾ÝʵÑéÊý¾Ý»­³öÁË×ø±êµã£¬Èçͼ±ûËùʾ£®ÇëÄã×÷½øÒ»²½´¦Àí£¬²¢ÓÉͼÇó³öµÈЧµçÔ´µÄµç¶¯ÊÆE=
 
V£¬ÄÚ×èr=
 
¦¸£®
¢ÛÓÉÓÚµçѹ±íºÍµçÁ÷±íµÄÄÚ×裬»á²úÉúϵͳÎó²î£¬Ôò²ÉÓô˲âÁ¿µç·Ëù²âµÃµÄµç¶¯ÊÆÓëʵ¼ÊÖµÏà±È
 
£¬²âµÃµÄÄÚ×èÓëʵ¼ÊÖµÏà±È
 
£¨Ìî¡°Æ«´ó¡±¡¢¡°Æ«Ð¡¡±ºÍ¡°Ïàͬ¡±£©£®

²é¿´´ð°¸ºÍ½âÎö>>

ͬ²½Á·Ï°²á´ð°¸