ÌâÄ¿ÄÚÈÝ
ijЩ¹ÌÌå²ÄÁÏÊܵ½ÍâÁ¦ºó³ýÁ˲úÉúÐα䣬Æäµç×èÂÊÒ²Òª·¢Éú±ä»¯£¬ÕâÖÖÓÉÓÚÍâÁ¦µÄ×÷Óöøʹ²ÄÁϵç×èÂÊ·¢Éú±ä»¯µÄÏÖÏó³ÆΪ¡°Ñ¹×èЧӦ¡±£®ÏÖÓÃÈçͼ1ËùʾµÄµç·Ñо¿Ä³³¤±¡°åµç×è
µÄѹ×èЧӦ£¬ÒÑÖª
µÄ×èÖµ±ä»¯·¶Î§Îª¼¸Å·µ½¼¸Ê®Å·£¬ÊµÑéÊÒÖÐÓÐÏÂÁÐÆ÷²Ä£º
A£®µçÔ´E£¨3V£¬ÄÚ×èԼΪ1¦¸£©
B£®µçÁ÷±í
£¨0.6A£¬ÄÚ×è
=5¦¸£©
C£®µçÁ÷±í
£¨0.6A£¬ÄÚ×èԼΪ1¦¸£©
D£®¿ª¹ØS£¬¶¨Öµµç×è
£¨1£©ÎªÁ˱ȽÏ׼ȷ²âÁ¿µç×è
£¬ÇëÍê³ÉÐéÏß¿òÄÚµç·ͼµÄÉè¼Æ£®
£¨2£©ÔÚµç×è
ÉϼÓÒ»¸öÊúÖ±ÏòϵÄÁ¦F£¨ÉèÊúÖ±ÏòÏÂΪÕý·½Ïò£©£¬±ÕºÏ¿ª¹ØS£¬¼Çϵç±í¶ÁÊý£¬
¶ÁÊýΪ
£¬
¶ÁÊýΪ
£¬µÃ
=
£¨ÓÃ×Öĸ±íʾ£©£®
£¨3£©¸Ä±äÁ¦µÄ´óС£¬µÃµ½²»Í¬µÄ
Öµ£®È»ºóÈÃÁ¦·´Ïò´ÓÏÂÏòÉϼ·Ñ¹µç×裬²¢¸Ä±äÁ¦µÄ´óС£¬µÃµ½²»Í¬µÄ
Öµ£¬×îºó»æ³ÉͼÏóÈçͼ2Ëùʾ£¬³ý¹Û²ìµ½µç×è
µÄ×èÖµËæѹÁ¦FÔö´ó¶ø¾ùÔȼõСÍ⣬»¹¿ÉµÃµ½µÄ½áÂÛÊÇ
ÓëËùÊÜѹÁ¦FµÄÊýÖµ¹ØϵÊÇ
=
R | x |
R | x |
A£®µçÔ´E£¨3V£¬ÄÚ×èԼΪ1¦¸£©
B£®µçÁ÷±í
A | 1 |
r | 1 |
C£®µçÁ÷±í
A | 2 |
D£®¿ª¹ØS£¬¶¨Öµµç×è
R | 0 |
£¨1£©ÎªÁ˱ȽÏ׼ȷ²âÁ¿µç×è
R | x |
£¨2£©ÔÚµç×è
R | x |
A | 1 |
I | 1 |
A | 2 |
I | 2 |
R | x |
I1r1 |
I2-I1 |
I1r1 |
I2-I1 |
£¨3£©¸Ä±äÁ¦µÄ´óС£¬µÃµ½²»Í¬µÄ
R | x |
R | x |
R | x |
µç×èÓëѹÁ¦¹ØϵΪһ´Îº¯Êý
µç×èÓëѹÁ¦¹ØϵΪһ´Îº¯Êý
£®µ±FÊúÖ±ÏòÏÂʱ¿ÉµÃR | x |
R | x |
16-2F
16-2F
£®·ÖÎö£ºÓÉÓÚÖªµÀµçÁ÷±í
µÄ×èÖµ£¬ËùÒÔÓõçÁ÷±í
×÷Ϊµçѹ±íʹÓ㬵çÁ÷±í
Á¬ÔڸɷÉϼ´¿ÉÇó³öµç×è
µÄ×èÖµ£¬
¸ù¾ÝͼÏóµÄÌصãµÃ³ö½áÂÛºÍÇó½âº¯Êý¹Øϵ£®
A | 1 |
A | 1 |
A | 2 |
R | x |
¸ù¾ÝͼÏóµÄÌصãµÃ³ö½áÂÛºÍÇó½âº¯Êý¹Øϵ£®
½â´ð£º½â£º£¨1£©ÓÉÓÚÌâÄ¿ÖÐûÓеçѹ±í£¬ÎªÁ˱ȽÏ׼ȷ²âÁ¿µç×è
£¬
ÖªµÀµçÁ÷±í
µÄ×èÖµ£¬ËùÒÔÓõçÁ÷±í
×÷Ϊµçѹ±íʹÓ㬵çÁ÷±í
Á¬ÔڸɷÉÏ£¬¼´¿ÉÇó³öµç×è
µÄ×èÖµ£®
µç·ͼµÄÉè¼Æ£º
£¨2£©¸ù¾Ý´®²¢ÁªºÍÅ·Ä·¶¨ÂɵãºI1r1=£¨I2-I1£©Rx£¬
Rx=
£¨3£©´ÓͼÏóÉÏ¿ÉÒÔ¿´³öѹÁ¦·½Ïò¸Ä±ä£¬Æä×èÖµ²»±ä£¬Æäµç×èÓëѹÁ¦¹ØϵΪһ´Îº¯Êý£¬
ÓÉͼÏó¿ÉµÃ£º
=16-2F
¹Ê´ð°¸Îª£º£¨1£©Èçͼ
£¨2£©
£¨3£©µç×èÓëѹÁ¦¹ØϵΪһ´Îº¯Êý£¬16-2F
R | x |
ÖªµÀµçÁ÷±í
A | 1 |
A | 1 |
A | 2 |
R | x |
µç·ͼµÄÉè¼Æ£º
£¨2£©¸ù¾Ý´®²¢ÁªºÍÅ·Ä·¶¨ÂɵãºI1r1=£¨I2-I1£©Rx£¬
Rx=
I1r1 |
I2-I1 |
£¨3£©´ÓͼÏóÉÏ¿ÉÒÔ¿´³öѹÁ¦·½Ïò¸Ä±ä£¬Æä×èÖµ²»±ä£¬Æäµç×èÓëѹÁ¦¹ØϵΪһ´Îº¯Êý£¬
ÓÉͼÏó¿ÉµÃ£º
R | x |
¹Ê´ð°¸Îª£º£¨1£©Èçͼ
£¨2£©
I1r1 |
I2-I1 |
£¨3£©µç×èÓëѹÁ¦¹ØϵΪһ´Îº¯Êý£¬16-2F
µãÆÀ£º½â¾ö¸ÃÌâ¹Ø¼üÒªÊìÁ·µç·µÄ´®²¢ÁªÖªÊ¶ºÍÅ·Ä·¶¨ÂɵÄÔËÓã¬Äܹ»°ÑÊýѧ֪ʶºÍÎïÀíÎÊÌâ½áºÏÇó½â£®
Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿