һλͬѧÔÚ̽¾¿Ä³ÈÈÃôµç×èRTµÄÖµËæζȵı仯¹ØϵµÄʵÑéÖУ¬±¸ÓÐÏÂÁÐÆ÷²Ä£º
A£®´ý²âÈÈÃôµç×èRT£»
B£®µçÁ÷±íA1£¨ÂúÆ«µçÁ÷30mA£¬ÄÚ×èRg1=20¦¸£©£»
C£®µçÁ÷±íA2£¨ÂúÆ«µçÁ÷3mA£¬ÄÚ×èRg2=2010¦¸£©£»
D£®»¬¶¯±ä×èÆ÷R1£¨0¡«500¦¸£¬¶î¶¨µçÁ÷Ϊ0.6A£©£®
E£®»¬¶¯±ä×èÆ÷R2£¨0¡«10¦¸£¬¶î¶¨µçÁ÷Ϊ2A£©£»
F£®¶¨Öµµç×èR0£¨990¦¸£©£»      
G£®¿ª¹ØºÍµ¼ÏßÈô¸É
H£®12VÖ±Á÷µçÔ´Ò»¸ö£»
¢Ùijͬѧ·¢ÏÖÉÏÊöÆ÷²ÄÖÐËäȻûÓеçѹ±í£¬µ«¸ø³öÁËÁ½Ö»µçÁ÷±í£¬ÓÚÊÇËû³õ²½Éè¼ÆÁËÈçͼ£¨1£©Ëùʾa¡¢bÁ½¸öµÄʵÑéµç·£»ÎªÁËÃè»æRT-tͼÏóÐè²â³ö¶à×éʵÑéÊý¾ÝÒò´ËӦѡµç·______£¬Ôڸõç·ÖУ¬ÎªÁË˳ÀûÍê³ÉʵÑ飬»¬¶¯±ä×èÆ÷Ӧѡ______£¨ÌîдÆ÷²ÄÇ°ÃæµÄ×Öĸ´úºÅ£©£»¸ù¾Ý¸ù¾ÝÄãËùÑ¡ÔñµÄµç·£®ÇëÔÚͼ£¨2£©ËùʾµÄʵÎïͼÉÏÍê³ÉδÁ¬Ïß²¿·Ö£®
¢ÚʵÑéÖУ¬²âµÃµÄÊý¾ÝÔÚRT-t×ø±êϵÖÐ×÷³öµÄÇúÏßÈçͼ£¨3£©Ëùʾ£®µ±ÈÈÃôµç×èµÄζÈΪ400Cʱ£¬µçÁ÷±íA1Ç¡ºÃ´ïµ½°ëÆ«£¬ÔòµçÁ÷±íA2µÄʾÊýÊÇ______
¢Û¾Ù³öÒ»¸ö¿ÉÒÔÓ¦ÓÃÈÈÃôµç×èµÄÀý×Ó£º______£®

¾«Ó¢¼Ò½ÌÍø
¾«Ó¢¼Ò½ÌÍø
¢ÙΪÁËÃè»æRT-tͼÏóÐè²â³ö¶à×éʵÑéÊý¾ÝÒò´Ë»¬¶¯±ä×èÆ÷Ó¦¸Ã²ÉÓ÷Öѹ½Ó·¨£¬¹Ê
¾«Ó¢¼Ò½ÌÍø
Ӧѡµç·b£¬¶øÔÚ·Öѹ½Ó·¨ÖÐС×èÖµµÄ»¬¶¯±ä×èÆ÷±ãÓÚµ÷½Ú£¬¹Ê»¬¶¯±ä×èÆ÷Ó¦¸ÃÑ¡E£»¸ù¾Ýµç·ͼÁ¬½ÓʵÎïͼÈçͼËùʾ£»
¢ÚÓÉͼÈý¿ÉÖªµ±Î¶ÈΪ40¡ãCʱ£¬ÈÈÃôµç×èµÄµç×èֵΪ400¦¸£¬µçÁ÷±íA1Ç¡ºÃ´ïµ½°ëÆ«£¬ÔòµçÁ÷±íA1µÄʾÊýΪ15mA£¬
¹Ê²¢Áª²¿·ÖµÄµçѹΪU=15¡Á10-3¡Á£¨20+400£©=6.3v£¬
ËùÒÔµçÁ÷±íA2µÄʾÊýÊÇI2=
U
Rg2+R0
=
6.3
2010+90
=
6.3
3000
=2.1¡Á10-3A=2.1mA£»
¢Û¿ÉÒÔÓ¦ÓÃÈÈÃôµç×èµÄÀý×ÓÓУºÈÈÃôζȼƣ®
¹Ê±¾ÌâµÄ´ð°¸Îª£º
¢Ùb£»  E     ʵÎïµç·Á¬½ÓÈçͼ
¢Ú2.1 mA   ¢ÛÈÈÃôζȼÆ
Á·Ï°²áϵÁдð°¸
Ïà¹ØÏ°Ìâ

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

һλͬѧÔÚ̽¾¿Ä³ÈÈÃôµç×èRTµÄÖµËæζȵı仯¹ØϵµÄʵÑéÖУ¬±¸ÓÐÏÂÁÐÆ÷²Ä£º
A£®´ý²âÈÈÃôµç×èRT£»
B£®µçÁ÷±íA1£¨ÂúÆ«µçÁ÷30mA£¬ÄÚ×èRg1=20¦¸£©£»
C£®µçÁ÷±íA2£¨ÂúÆ«µçÁ÷3mA£¬ÄÚ×èRg2=2010¦¸£©£»
D£®»¬¶¯±ä×èÆ÷R1£¨0¡«500¦¸£¬¶î¶¨µçÁ÷Ϊ0.6A£©£®
E£®»¬¶¯±ä×èÆ÷R2£¨0¡«10¦¸£¬¶î¶¨µçÁ÷Ϊ2A£©£»
F£®¶¨Öµµç×èR0£¨990¦¸£©£»      
G£®¿ª¹ØºÍµ¼ÏßÈô¸É
H£®12VÖ±Á÷µçÔ´Ò»¸ö£»
¢Ùijͬѧ·¢ÏÖÉÏÊöÆ÷²ÄÖÐËäȻûÓеçѹ±í£¬µ«¸ø³öÁËÁ½Ö»µçÁ÷±í£¬ÓÚÊÇËû³õ²½Éè¼ÆÁËÈçͼ£¨1£©Ëùʾa¡¢bÁ½¸öµÄʵÑéµç·£»ÎªÁËÃè»æRT-tͼÏóÐè²â³ö¶à×éʵÑéÊý¾ÝÒò´ËӦѡµç·
b
b
£¬Ôڸõç·ÖУ¬ÎªÁË˳ÀûÍê³ÉʵÑ飬»¬¶¯±ä×èÆ÷Ӧѡ
E
E
£¨ÌîдÆ÷²ÄÇ°ÃæµÄ×Öĸ´úºÅ£©£»¸ù¾Ý¸ù¾ÝÄãËùÑ¡ÔñµÄµç·£®ÇëÔÚͼ£¨2£©ËùʾµÄʵÎïͼÉÏÍê³ÉδÁ¬Ïß²¿·Ö£®
¢ÚʵÑéÖУ¬²âµÃµÄÊý¾ÝÔÚRT-t×ø±êϵÖÐ×÷³öµÄÇúÏßÈçͼ£¨3£©Ëùʾ£®µ±ÈÈÃôµç×èµÄζÈΪ400Cʱ£¬µçÁ÷±íA1Ç¡ºÃ´ïµ½°ëÆ«£¬ÔòµçÁ÷±íA2µÄʾÊýÊÇ
2.1mA
2.1mA

¢Û¾Ù³öÒ»¸ö¿ÉÒÔÓ¦ÓÃÈÈÃôµç×èµÄÀý×Ó£º
ÈÈÃôζȼÆ
ÈÈÃôζȼÆ
£®

²é¿´´ð°¸ºÍ½âÎö>>

ͬ²½Á·Ï°²á´ð°¸