ÔÚ¡°ÑéÖ¤»úеÄÜÊغ㶨ÂÉ¡±µÄʵÑéÖУº
£¨1£©ÊµÑéÖÐ___________£¨ÌîÐèÒª»ò²»ÐèÒª£©ÓÃÌìƽ²âÁ¿ÖØÎïµÄÖÊÁ¿m¡£¿ªÊ¼´òµã¼ÆʱµÄʱºò£¬½ÓͨµçÔ´ºÍËÉ¿ªÖ½´øµÄ˳ÐòÓ¦¸ÃÊÇ£¬ÏÈ_______________¡£
£¨2£©¹©Ñ¡ÔñµÄÖØÎïÓÐÒÔÏÂËĸö£¬Ó¦Ñ¡Ôñ________£®
A£®ÖÊÁ¿Îª100 gµÄľÇò
B£®ÖÊÁ¿Îª10 gµÄíÀÂë
C£®ÖÊÁ¿Îª200 gµÄ¹³Âë
D£®ÖÊÁ¿Îª10 gµÄËÜÁÏÇò
£¨3£©Ê¹ÓÃÖÊÁ¿ÎªmµÄÖØÎïºÍ´òµã¼ÆʱÆ÷ÑéÖ¤»úеÄÜÊغ㶨ÂɵÄʵÑéÖУ¬ÔÚÑ¡¶¨µÄÖ½´øÉÏÒÀ´ÎÈ¡¼ÆÊýµãÈçͼËùʾ£¬Ö½´øÉÏËù´òµÄµã¼Ç¼ÁËÎïÌåÔÚ²»Í¬Ê±¿ÌµÄλÖã¬ÄÇôֽ´øµÄ__________¶Ë£¨Ìî×ó»òÓÒ£©ÓëÖØÎïÏàÁ¬£®ÉèÏàÁÚ¼ÆÊýµãµÄʱ¼ä¼ä¸ôΪT£¬ÇÒOΪ´òϵĵÚÒ»¸öµã¡£µ±´òµã¼ÆʱÆ÷´òµã¡°3¡±Ê±£¬ÎïÌåµÄ¶¯Äܱí´ïʽΪ______________¡£

£¨1£©²»ÐèÒª£»½ÓͨµçÔ´
£¨2£©C
£¨3£©×ó£»m(S4£­S2)2/8T2
Á·Ï°²áϵÁдð°¸
Ïà¹ØÏ°Ìâ

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

£¨1£©ÏÖÐиßÖÐÎïÀí½Ì²ÄµÄѧÉúʵÑéÖУ¬ÌṩÁËÖØ´¸ÏßµÄÊÇ
AC
AC

A¡¢Ñо¿Æ½Å×ÎïÌåµÄÔ˶¯    B¡¢ÑéÖ¤»úеÄÜÊغ㶨ÂÉ
C¡¢ÑéÖ¤¶¯Á¿Êغ㶨        D¡¢Óõ¥°Ú²â¶¨ÖØÁ¦¼ÓËÙ¶È
£¨2£©ÔÚÀûÓÃ×ÔÓÉÂäÌåÔ˶¯ÑéÖ¤»úеÄÜÊغ㶨ÂɵÄʵÑéÖУºÈô´òµã¼ÆʱÆ÷Ëù½Ó½»Á÷µçµÄƵÂÊΪ50ºÕ×È£¬¼×¡¢ÒÒÁ½ÌõʵÑéÖ½´ø£¬Èçͼ1Ëùʾ£¬Ó¦Ñ¡
¼×
¼×
Ö½´øºÃ£®ÈôÒѲâµÃµã2µ½4¼ä¾àÀëΪs1£¬µã0µ½3¼ä¾àÀëΪs2£¬´òµãÖÜÆÚΪT£¬ÑéÖ¤ÖØÎ↑ʼÏÂÂäµ½´òµã¼ÆʱÆ÷´òϵã3Õâ¶Îʱ¼äÄÚ»úеÄÜÊغ㣬s1¡¢s2ºÍTÓ¦Âú×ãµÄ¹ØϵΪT=
S1
2
2gS2
S1
2
2gS2
£®

£¨3£©Ó°ÏìÎïÖʲÄÁϵç×èÂʵÄÒòËغ࣮ܶһ°ã½ðÊô²ÄÁϵĵç×èÂÊËæζȵÄÉý¸ßÔö´ó£¬¶ø°ëµ¼Ìå²ÄÁϵĵç×èÂÊÔòËæζȵÄÉý¸ß¶ø¼õС£®Ä³Ð£Ñо¿ÐÔѧϰС×éΪÁËÑо¿Ä³ÖÖµ¼µç²ÄÁϵĵ¼µçÌØÐÔ£¬ËûÃÇÓøÃÖÖ²ÄÁÏÖÆ×÷³Éµç×èÖµ½ÏСµÄÏß×´Ôª¼þz×öʵÑ飬ËùÓõçѹ±íµÄÁ¿³ÌΪ3V£¬µçÁ÷±íµÄÁ¿³ÌΪ3A£¬²âµÃÔª¼þZÖеĵçÁ÷ÓëÏàÓ¦µçѹµÄ9×éÊý¾Ý±êÔÚI-UͼÉÏ£®
¢ÙËûÃǽøÐÐʵÑéӦѡÓõÄʵÎïµç·ͼÊÇͼ2ÖеÄ
C
C
£®

¢ÚÔÚ½»Á÷ÆÀ¼Û¹ý³ÌÖÐijͬѧÌá³ö£¬ÓÐ2×éʵÑéÊý¾Ý´æÔÚÃ÷ÏԵĴíÎó£¬ÄãÈÏΪÊÇ
C¡¢D
C¡¢D
£¨Ö»ÐèÌîÉÏÓë¸ÃÊý¾Ý¶ÔÓ¦µÄµãO¡¢A¡¢B¡­£©
¢ÛÇëÔÚͼ3ÉÏ»­³öÔª¼þZµÄ·ü°²ÌØÐÔÇúÏߣ¬ÅжÏÔª¼þZÊÇ
°ëµ¼Ìå
°ëµ¼Ìå
²ÄÁÏ£¨¡°½ðÊô¡±»ò¡°°ëµ¼Ì塱£©£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

£¨2010?³É¶¼¶þÄ££©£¨1£©ÔÚÑéÖ¤¡°»úеÄÜÊغ㶨ÂÊ¡±µÄÊÔÑéÖУº
¢ÙÏÂÃæÐðÊöÕýÈ·µÄÊÇ
AB
AB
£¨ÌîÐòºÅ×Öĸ£©
A£®Ñ¡ÓõÄÖØÎïµÄÌå»ýÓ¦µ±Ð¡Ò»Ð©
B£®²Ù×÷ʱӦÏÈͨµçÔÙÊÍ·ÅÖ½´ø
C£®Ó¦¸ÃÑ¡Óõ㼣ÇåÎú£¬ÇÒµÚÒ»¡¢¶þÁ½µã¼äµÄ¾àÀë½Ó½ü2mmµÄÖ½´ø½øÐзÖÎö
D£®µç´Å´òµã¼ÆʱÆ÷¶¼Ó¦½ÓÔÚµçѹΪ20VµÄ½»Á÷µçÔ´ÉÏ
¢ÚʵÑéÊÒÓÐÏÂÁÐÆ÷²Ä¿É¹©Ñ¡ÓãºÌú¼Ų̈£¬µç´Å´òµã¼ÆʱÆ÷£¨°üÀ¨¸´Ð´Ö½£©£¬Ö½´ø£¬Í£±í£¬µÍѹ½»Á÷µçÔ´£¨´ø¿ª¹Ø£©£¬µ¼Ïߣ¬Ììƽ£¬¿Ì¶È³ß£®
ÆäÖв»±ØÒªµÄÆ÷²ÄÓÐ
Í£±í£¬Ììƽ
Í£±í£¬Ììƽ
£»È±ÉÙµÄÆ÷²ÄÊÇ
ÖØÎï
ÖØÎï
£®
£¨2£©Ä³Í¬Ñ§Ïë²âij¸öµç×èµÄµç×èÖµRx£¨Ô¼Îª130¦¸£©£¬Îª´ËËûÕÒÀ´ÏÂÁÐÆ÷²Ä£º
A£®µçÁ÷E£ºµç¶¯ÊÆԼΪ1.5V£¬ÄÚ×è¿ÉºöÂÔ²»¼Æ
B£®µçÁ÷±íA1£ºÁ¿³ÌΪ0¡«10mA£¬ÄÚµç×èr1=10¦¸
C£®µçÁ÷±íA2£ºÁ¿³ÌΪ0¡«20mAµç×èr2ԼΪ5¦¸
D£®¶¨Öµµç×èR0£º×èÖµR0=90¦¸
E£®»¬¶¯±ä×èÆ÷R1£º×î´ó×èֵΪ20¦¸
F£®»¬¶¯±ä×èÆ÷R2£º×î´ó×èֵΪ1000¦¸
G£®µ¥µ¶µ¥ÖÀ¿ª¹ØS£¬µ¼ÏßÈô¸É
¢Ù¸ÃͬѧµÄÉè¼Æ˼·ÊÇ£ºÏȽ«ÆäÖÐÒ»Ö»µçÁ÷±í¸Ä×°³Éµçѹ±í£¬È»ºóÀûÓ÷ü°²·¨²â³öRx£®ÎªÁ˾¡Á¿×¼È·µÄ²â³öRxµÄ×èÖµ£¬ÇëÄã¸ù¾ÝÕÒµ½µÄÆ÷²ÄºÍ¸ÃͬѧµÄÉè¼Æ˼·£¬ÔÚÐéÏß¿òÄÚ»­³öʵÑéµç·ͼ£¬²¢±ê³öÆ÷²Ä·ûºÅ£®
¢ÚÄãËùÑ¡ÓõĻ¬¶¯±ä×èÆ÷ÊÇ
R1
R1
£¨ÌîÆ÷²ÄÐòºÅ×Öĸ»òÆ÷²Ä·ûºÅ£©£®
¢ÛÈôij´Î²âÁ¿ÖеçÁ÷±íA1µÄʾÊýΪI1£¬µçÁ÷±íA2µÄʾÊýΪI2£¬ÔòRxµÄ±í´ïʽΪ£ºRx=
I1(R0+r1)
I2-I1
I1(R0+r1)
I2-I1
£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

ijʵÑéС×éÏëÀûÓÃͼ£¨¼×£©ËùʾµÄµ¥°Ú×°ÖÃÀ´ÑéÕý»úеÄÜÊغ㶨£¬µ«ÐèÒªÏȲⶨµ±µØµÄÖØÁ¦¼ÓËٶȣ®ËûÃÇ´ÓʵÑéÊÒÕÒÀ´ÁËÈçͼ£¨ÒÒ£©ËùʾµÄʵÑéÆ÷²Ä£®
£¨1£©ÔÚ²âÁ¿µ±µØµÄÖØÁ¦¼ÓËÙ¶Èʱ£¬³ýÆ÷²Äa¡¢cÍ⣬»¹Ó¦Ñ¡ÔñµÄÆ÷²ÄÓÐ
 
£¨ÌîÆ÷²ÄϵÄ×Öĸ£©£®Èô²âÁ¿¹ý³ÌÖÐÐüµãËɶ¯£¬Ôò²â³öµÄÖØÁ¦¼ÓËÙ¶È
 
ÕæʵÖØÁ¦¼ÓËٶȣ¨Ìî¡°´óÓÚ¡¢µÈÓÚ»òСÓÚ¡±£©£®
£¨2£©ÓÃÓα꿨³ß²âÁ¿°ÚÇòµÄÖ±¾¶Ê±¶ÁÊýÈçͼËùʾ£¬ÔòСÇòµÄÖ±¾¶Îª
 
 cm£®
£¨3£©ÖØÁ¦¼ÓËٶȲâ³öºó£¬¼ÌÐøÑéÖ¤°ÚÇòµÄ»úеÄÜÊÇ·ñÊغ㣬ÐèÒªµÄÆ÷²ÄÓÐ
 
£¨ÌîÆ÷²ÄϵÄ×Öĸ£©£®È¡×îµÍµãD´¦ÎªÁãÊÆÃ棬ºá×ø±êhΪСÇòÀë×îµÍµãµÄ¸ß¶È£¬×Ý×ø±êEΪСÇòµÄ¶¯ÄÜ»òÊÆÄÜ£¨mΪСÇòµÄÖÊÁ¿£©£®ÍƾݼǼµÄʵÑéÊý¾Ý£¬´¦ÀíºóµÃµ½Í¼£¨±û£©ËùʾµÄʵÑéͼÏ󣬾­·ÖÎöºó¿ÉÒԵóöµÄ½áÂÛÊÇ£º
 
£®¾«Ó¢¼Ò½ÌÍø

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º2012ÄêÕã½­Ê¡ÎÂÖÝÊи߿¼ÎïÀíÊÊÓ¦ÐÔѵÁ·£¨¶þ£©£¨½âÎö°æ£© ÌâÐÍ£º½â´ðÌâ

ijʵÑéС×éÏëÀûÓÃͼ£¨¼×£©ËùʾµÄµ¥°Ú×°ÖÃÀ´ÑéÕý»úеÄÜÊغ㶨£¬µ«ÐèÒªÏȲⶨµ±µØµÄÖØÁ¦¼ÓËٶȣ®ËûÃÇ´ÓʵÑéÊÒÕÒÀ´ÁËÈçͼ£¨ÒÒ£©ËùʾµÄʵÑéÆ÷²Ä£®
£¨1£©ÔÚ²âÁ¿µ±µØµÄÖØÁ¦¼ÓËÙ¶Èʱ£¬³ýÆ÷²Äa¡¢cÍ⣬»¹Ó¦Ñ¡ÔñµÄÆ÷²ÄÓÐ______£¨ÌîÆ÷²ÄϵÄ×Öĸ£©£®Èô²âÁ¿¹ý³ÌÖÐÐüµãËɶ¯£¬Ôò²â³öµÄÖØÁ¦¼ÓËÙ¶È______ÕæʵÖØÁ¦¼ÓËٶȣ¨Ìî¡°´óÓÚ¡¢µÈÓÚ»òСÓÚ¡±£©£®
£¨2£©ÓÃÓα꿨³ß²âÁ¿°ÚÇòµÄÖ±¾¶Ê±¶ÁÊýÈçͼËùʾ£¬ÔòСÇòµÄÖ±¾¶Îª______ cm£®
£¨3£©ÖØÁ¦¼ÓËٶȲâ³öºó£¬¼ÌÐøÑéÖ¤°ÚÇòµÄ»úеÄÜÊÇ·ñÊغ㣬ÐèÒªµÄÆ÷²ÄÓÐ______£¨ÌîÆ÷²ÄϵÄ×Öĸ£©£®È¡×îµÍµãD´¦ÎªÁãÊÆÃ棬ºá×ø±êhΪСÇòÀë×îµÍµãµÄ¸ß¶È£¬×Ý×ø±êEΪСÇòµÄ¶¯ÄÜ»òÊÆÄÜ£¨mΪСÇòµÄÖÊÁ¿£©£®ÍƾݼǼµÄʵÑéÊý¾Ý£¬´¦ÀíºóµÃµ½Í¼£¨±û£©ËùʾµÄʵÑéͼÏ󣬾­·ÖÎöºó¿ÉÒԵóöµÄ½áÂÛÊÇ£º______£®

²é¿´´ð°¸ºÍ½âÎö>>

ͬ²½Á·Ï°²á´ð°¸