ijͬѧÀûÓÃͼ¼×ËùʾµÄµç·²âÁ¿Ò»¶¨Öµµç×èRxµÄ×èÖµ¡£ËùÓõÄÆ÷²ÄÓУº

´ý²âµç×裬×èֵԼΪ50

µçÁ÷±í£¬ÄÚ×èԼΪ20£¬Á¿³Ì50mA

µçÁ÷±í£¬ÄÚ×èr2ԼΪ4£¬Á¿³Ì300mA 

µç×èÏ䣬0¡«999.9

»¬¶¯±ä×èÆ÷£¬0¡«20

µçÔ´E£¬µç¶¯ÊÆ3V£¬ÄÚ×èºÜС

µ¥µ¶µ¥ÖÀ¿ª¹Ø¡¢µ¥µ¶Ë«ÖÀ¿ª¹Ø¡¢µ¼ÏßÈô¸É

Çë»Ø´ðÏÂÁÐÎÊÌ⣺

£¨a£©ÔÚͼÒÒËùʾµÄʵÎïͼÉÏ»­³öÁ¬Ïߣ¬

£¨b£©±ÕºÏ£¬½«ÖÀÓÚ1£¬µ÷½Ú£¬µ½Êʵ±Î»Ö㬼ÇÏÂÁ½±íµÄ¶ÁÊý¡¢ºÍµç×èÏäµÄ×èÖµ¡£ÎªÊ¹Á½±íµÄʾÊý¾ù³¬¹ýÁ¿³ÌµÄÒ»°ë£¬¿ÉÈ¡________£¨ÌîÐòºÅ£©.

A. 0.5¦¸            B. 5.0¦¸           C.50.0¦¸

£¨c£©±ÕºÏ£¬½«ÖÀÓÚ£¬µ÷½Ú¡¢µ½Êʵ±Î»Ö㬼ÇÏÂÁ½±íµÄ¶ÁÊý¡¢ºÍµç×èÏäµÄ×èÖµ¡£ÓòâµÃµÄÎïÀíÁ¿±íʾ´ý²âµç×èµÄ²âÁ¿Öµ__________.

£¨13·Ö£©

£¨a£©        ¡­¡­¡­¡­¡­¡­5·Ö

£¨b£©B                                                 ¡­¡­¡­¡­¡­¡­4·Ö

£¨c£©                             ¡­¡­¡­¡­¡­¡­4·Ö

Á·Ï°²áϵÁдð°¸
Ïà¹ØÏ°Ìâ

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

ijͬѧÀûÓÃͼ¼×ËùʾµÄʵÑé×°Öã¬Ì½¾¿Îï¿éÔÚˮƽ×ÀÃæÉϵÄÔ˶¯¹æÂÉ£®Îï¿éÔÚÖØÎïµÄÇ£ÒýÏ¿ªÊ¼Ô˶¯£¬ÖØÎïÂäµØºó£¬Îï¿éÔÙÔ˶¯Ò»¶Î¾àÀëÍ£ÔÚ×ÀÃæÉÏ£¨ÉÐδµ½´ï»¬ÂÖ´¦£©£®´ÓÖ½´øÉϱãÓÚ²âÁ¿µÄµã¿ªÊ¼£¬Ã¿5¸öµãÈ¡1¸ö¼ÆÊýµã£¬ÏàÁÚ¼ÆÊýµã¼äµÄ¾àÀëÈçͼÒÒËùʾ£®´òµã¼ÆʱÆ÷µçÔ´µÄƵÂÊΪ50Hz£®
¢Ùͨ¹ý·ÖÎöÖ½´øÊý¾Ý£¬¿ÉÅжÏÎï¿éÔÚÏàÁÚ¼ÆÊýµã
6
6
ºÍ
7
7
Ö®¼äijʱ¿Ì¿ªÊ¼¼õËÙ£®
¢Ú¼ÆÊýµã5¶ÔÓ¦µÄËٶȴóСΪ
1.00
1.00
m/s£¬¼ÆÊýµã6¶ÔÓ¦µÄËٶȴóСΪ1.16m/s£®£¨±£ÁôÈýλÓÐЧÊý×Ö£©£®
¢ÛÎï¿é¼õËÙÔ˶¯¹ý³ÌÖмÓËٶȵĴóСΪa=
2.00
2.00
m/s2£¬ÈôÓÃ
ag
À´¼ÆËãÎï¿éÓë×ÀÃæ¼äµÄ¶¯Ä¦²ÁÒòÊý£¨gΪÖØÁ¦¼ÓËٶȣ©£¬Ôò¼ÆËã½á¹û±È¶¯Ä¦²ÁÒòÊýµÄÕæʵֵ
Æ«´ó
Æ«´ó
£¨Ìî¡°Æ«´ó¡±»ò¡°Æ«Ð¡¡±£©£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

ijͬѧÀûÓÃͼ¼×ËùʾµÄʵÑé×°Öã¬Ì½¾¿Îï¿éÔÚˮƽ×ÀÃæÉϵÄÔ˶¯¹æÂÉ£®Îï¿éÔÚÖØÎïµÄÇ£ÒýÏ¿ªÊ¼Ô˶¯£¬ÖØÎïÂäµØºó£¬Îï¿éÔÙÔ˶¯Ò»¶Î¾àÀëÍ£ÔÚ×ÀÃæÉÏ£¨ÉÐδµ½´ï»¬ÂÖ´¦£©£®´ÓÖ½´øÉϱãÓÚ²âÁ¿µÄµã¿ªÊ¼£¨ÆäÖеڡ°1¡±µãÏÈ´òÏ£©£¬Ã¿5¸öµãÈ¡1¸ö¼ÆÊýµã£¬ÏàÁÚ¼ÆÊýµã¼äµÄ¾àÀëÈçͼÒÒËùʾ£®´òµã¼ÆʱÆ÷µçÔ´µÄƵÂÊΪ50Hz£®

¢Ùͨ¹ý·ÖÎöÖ½´øÊý¾Ý£¬¿ÉÅжÏÎï¿éÔÚÁ½ÏàÁÚ¼ÆÊýµã
6
6
ºÍ7Ö®¼äijʱ¿Ì¿ªÊ¼¼õËÙ£®
¢Ú¼ÆÊýµã9¶ÔÓ¦µÄËٶȴóСΪ
0.76
0.76
m/s£¬¼ÆÊýµã8¶ÔÓ¦µÄËٶȴóСΪ
0.96
0.96
m/s£®£¨±£Áô2λÓÐЧÊý×Ö£©
¢ÛÎï¿é¼ÓËÙÔ˶¯¹ý³ÌÖмÓËٶȵĴóСΪa=
2.0
2.0
m/s2£®£¨±£Áô2λÓÐЧÊý×Ö£©
¢ÜÎï¿éÔÚ¼ÓËٽ׶Σ¬Èç¹ûÒÔ
xt
Ϊ×Ý×ø±ê¡¢ÒÔtΪºá×ø±ê×÷ͼÏ󣬵õ½Í¼ÏóµÄбÂÊΪk£¬Ôò¼ÓËٶȴóСΪ
2k
2k
£¨ÓÃ×Öĸ·ûºÅ±íʾ£©£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

£¨2013?°²ÇìÈýÄ££©Ä³Í¬Ñ§ÀûÓÃͼ¼×ËùʾµÄµç·²âÁ¿Ò»¶¨Öµµç×èRxµÄ×èÖµ£®ËùÓõÄÆ÷²ÄÓУº
´ý²âµç×èRx£¬×èֵԼΪ50¦¸
µçÁ÷±íA1£¬ÄÚ×èr1ԼΪ20¦¸£¬Á¿³Ì50mA
µçÁ÷±íA2£¬ÄÚ×èr2ԼΪ4¦¸£¬Á¿³Ì300mA
µç×èÏäR£¬0¡«999.9¦¸
»¬¶¯±ä×èÆ÷R¡ä£¬0¡«20¦¸
µçÔ´E£¬µç¶¯ÊÆ3V£¬ÄÚ×èºÜС
µ¥µ¶µ¥ÖÀ¿ª¹ØS1¡¢µ¥µ¶Ë«ÖÀ¿ª¹ØS2¡¢µ¼ÏßÈô¸É
Çë»Ø´ðÏÂÁÐÎÊÌ⣺

£¨1£©ÔÚͼÒÒËùʾµÄʵÎïͼÉÏ»­³öÁ¬Ïߣ®
£¨2£©±ÕºÏS1£¬½«S2ÖÀÓÚ1£¬µ÷½ÚR¡ä¡¢RÖÁÊʵ±Î»Ö㬼ÇÏÂÁ½±íµÄ¶ÁÊýI1¡¢I2ºÍµç×èÏäµÄ×èÖµR1£®ÎªÊ¹Á½±íµÄʾÊý¾ù³¬¹ýÁ¿³ÌµÄÒ»°ë£¬R1¿ÉÈ¡
B
B
£®£¨ÌîÐòºÅ£©
A¡¢0.5¦¸     ¡¡¡¡B¡¢5.0¦¸     ¡¡¡¡ C¡¢50.0¦¸
£¨3£©±ÕºÏS1£¬½«S2ÖÀÓÚ2£¬µ÷½ÚR¡ä¡¢RÖÁÊʵ±Î»Ö㬼ÇÏÂÁ½±íµÄ¶ÁÊýI1¡ä¡¢I2¡äºÍµç×èÏäµÄ×èÖµR2£®ÓòâµÃµÄÎïÀíÁ¿±íʾ´ý²âµç×èµÄ²âÁ¿ÖµRx=
(I¡ä2-I¡ä1)R2
I¡ä1
-
(I2-I1)R1
I1
(I¡ä2-I¡ä1)R2
I¡ä1
-
(I2-I1)R1
I1
£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

£¨1£©Ä³Í¬Ñ§ÀûÓÃͼ¼×ËùʾµÄʵÑé×°Öã¬Ì½¾¿Îï¿éÔÚˮƽ×ÀÃæÉϵÄÔ˶¯¹æÂÉ£®Îï¿éÔÚÖØÎïµÄÇ£ÒýÏ¿ªÊ¼Ô˶¯£¬ÖØÎïÂäµØºó£¬Îï¿éÔÙÔ˶¯Ò»¶Î¾àÀëÍ£ÔÚ×ÀÃæÉÏ£¨ÉÐδµ½´ï»¬ÂÖ´¦£©£®´ÓÖ½´øÉϱãÓÚ²âÁ¿µÄµã¿ªÊ¼£¬Ã¿5¸öµãÈ¡1¸ö¼ÆÊýµã£¬ÏàÁÚ¼ÆÊýµã¼äµÄ¾àÀëÈçͼÒÒËùʾ£®´òµã¼ÆʱÆ÷µçÔ´µÄƵÂÊΪ50Hz
¾«Ó¢¼Ò½ÌÍø
¢Ùͨ¹ý·ÖÎöÖ½´øÊý¾Ý£¬¿ÉÅжÏÎï¿éÔÚÁ½ÏàÁÚ¼ÆÊýµã
 
ºÍ
 
Ö®¼äijʱ¿Ì¿ªÊ¼¼õËÙ£®
¢Ú¼ÆÊýµã5¶ÔÓ¦µÄËٶȴóСΪ
 
m/s£¬¼ÆÊýµã6¶ÔÓ¦µÄËٶȴóСΪ
 
m/s£®£¨±£ÁôÈýλÓÐЧÊý×Ö£©
¢ÛÎï¿é¼õËÙÔ˶¯¹ý³ÌÖмÓËٶȵĴóСΪa=
 
m/s2£¬ÈôÓÃ
ag
À´¼ÆËãÎï¿éÓë×ÀÃæ¼äµÄ¶¯Ä¦²ÁÒòÊý£¨gΪÖØÁ¦¼ÓËٶȣ©£¬Ôò¼ÆËã½á¹û±È¶¯Ä¦²ÁÒòÊýµÄÕæʵֵ
 
£¨Ìî¡°Æ«´ó¡±»ò¡°Æ«Ð¡¡±£©£®
¾«Ó¢¼Ò½ÌÍø£¨2£©ÔÚ²âÁ¿½ðÊôË¿µç×èÂʵÄʵÑéÖУ¬¿É¹©Ñ¡ÓõÄÆ÷²ÄÈçÏ£º
´ý²â½ðÊôË¿£ºRx£¨×èÖµÔ¼4¦¸£¬¶î¶¨µçÁ÷Ô¼0.5A£©£»
µçѹ±í£ºV£¨Á¿³Ì3V£¬ÄÚ×èÔ¼3K¦¸£©£»
µçÁ÷±í£ºA1£¨Á¿³Ì0.6A£¬ÄÚ×èÔ¼0.2¦¸£©£»
A2£¨Á¿³Ì3A£¬ÄÚ×èÔ¼0.05¦¸£©£»
µçÔ´£ºE1£¨µç¶¯ÊÆ3V£¬ÄÚ×è²»¼Æ£©£»
E2£¨µç¶¯ÊÆ12V£¬ÄÚ×è²»¼Æ£©£»
»¬¶¯±ä×èÆ÷£ºR£¨×î´ó×èÖµÔ¼20¦¸£©£»
ÂÝÐý²â΢Æ÷£»ºÁÃ׿̶ȳߣ»¿ª¹ØS£»µ¼Ïߣ®
¢ÙÓÃÂÝÐý²â΢Æ÷²âÁ¿½ðÊôË¿µÄÖ±¾¶£¬Ê¾ÊýÈçͼ±ûËùʾ£¬¶ÁÊýΪ
 
mm£®
¢ÚÈô»¬¶¯±ä×èÆ÷²ÉÓÃÏÞÁ÷½Ó·¨£¬ÎªÊ¹²âÁ¿¾¡Á¿¾«È·£¬µçÁ÷±íӦѡ
 
¡¢µçԴӦѡ
 
£¨¾ùÌîÆ÷²Ä´úºÅ£©£¬ÔÚÐéÏß¿òÄÚ£¨Èçͼ¶¡£©Íê³Éµç·ԭÀíͼ£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

ijͬѧÀûÓÃͼ¼×ËùʾµÄʵÑé×°ÖÃ×öÁËÕâÑùµÄʵÑ飮
¾«Ó¢¼Ò½ÌÍø
¢Ù°´×¡Ð¡³µ£¬ÔÚСµõÅÌÖзÅÈëÊʵ±ÖÊÁ¿µÄÎï¿é£®ÊͷŠС³µ£¬Ð¡³µÓɾ²Ö¹¿ªÊ¼Ô˶¯£®
¢Ú°´ÊµÑéÒªÇóÕýÈ·×°ÉÏÖ½´ø£¬ÈÃС³µ¿¿½ü´òµã¼ÆʱÆ÷£¬°´×¡Ð¡³µ£¬´ò¿ª´òµã¼ÆʱÆ÷µçÔ´£¬ÊÍ·ÅС³µ£¬»ñµÃÒ»Ìõ´øÓеãÁеÄÖ½´ø£®
¢ÛÔÚ»ñµÃµÄÖ½´øÉÏÇåÎúµÄ²¿·Ö£¬Ã¿5¸ö¼ä¸ô±ê×¢Ò»¸ö¼ÆÊýµãA£¬B£¬C£¬¡­£®²âÁ¿ÏàÁÚ¼ÆÊýµãµÄ¼ä¾às1£¬s2£¬s3£¬¡­£®²¢½«Æä¼Ç¼ÔÚÖ½´øÉ϶ÔÓ¦µÄλÖô¦£®
Íê³ÉÏÂÁÐÌî¿Õ£º
£¨1£©ÒÑ֪ʵÑé×°ÖÃÖдòµã¼ÆʱÆ÷µÄµçԴΪ50HzµÄµÍѹ½»Á÷µçÔ´£¬Èô´òµãµÄʱ¼ä¼ä¸ôÓá÷t±íʾ£¬Ôò¡÷t=
 
s£®
£¨2£©ÉèÖ½´øÉÏÎå¸öÏàÁÚ¼ÆÊýµãµÄ¼ä¾àΪs1¡¢s2¡¢s3ºÍs 4£®a¿ÉÓÃs1¡¢s4ºÍ¡÷t±íʾΪa=
 
£»vB¿ÉÓÃs1¡¢s2ºÍ¡÷t±íʾΪvB=
 
£®
£¨3£©Í¼ÒÒΪÓÃÃ׳߲âÁ¿ËùµÃÖ½´øÉϵÄs1¡¢s2¡¢s3ºÍs4µÄÇé¿ö£¬ÓÉͼ¿É¶Á³ös1=
 
cm£¬s2=
 
cm£¬s4=
 
cm£®ÓÉ´ËÇóµÃ¼ÓËٶȵĴóСa=
 
m/s2£¬vB=
 
 m/s£¨¼ÆËã½á¹ûÈ¡3λÓÐЧÊý×Ö£©£®

²é¿´´ð°¸ºÍ½âÎö>>

ͬ²½Á·Ï°²á´ð°¸