¢ñ£®ÎªÑо¿»¬¿éµÄÔ˶¯£¬Ñ¡Óû¬¿é¡¢¹³Âë¡¢Ö½´ø¡¢ºÁÃ׿̶ȳߡ¢´ø»¬Âֵľ°å¡¢ÒÔ¼°ÓÉ©¶·ºÍϸÏß¹¹³ÉµÄµ¥°ÚµÈ×é³ÉÈçͼËùʾµÄ×°Öã¬ÊµÑéÖУ¬»¬¿éÔÚ¹³Âë×÷ÓÃÏÂÍ϶¯Ö½´ø×öÔȼÓËÙÖ±ÏßÔ˶¯£¬Í¬Ê±Èõ¥°Ú´¹Ö±ÓÚÖ½´øÔ˶¯·½Ïò×öС·ù°Ú¶¯£¬Â©¶·¿ÉÒÔ©³öºÜϸµÄÓÐÉ«ÒºÌ壬ÔÚÖ½´øÉÏÁôϵĺۼ£¼Ç¼ÁË©¶·ÔÚ²»Í¬Ê±¿ÌµÄλÖÃÈçͼ1Ëùʾ£®
£¨1£©Â©¶·ºÍϸÏß¹¹³ÉµÄµ¥°ÚÔÚ¸ÃʵÑéÖÐËùÆðµÄ×÷ÓÃÓëÏÂÁÐÄĸöÒÇÆ÷Ïàͬ£¿
 
£¨ÌîдÒÇÆ÷ÐòºÅ£©
A£®´òµã¼ÆʱÆ÷B£®Ãë±í  C£®ºÁÃ׿̶ȳßD£®µçÁ÷±í
£¨2£©Èç¹ûÓøÃʵÑé×°ÖòâÁ¿»¬¿é¼ÓËٶȣ¬Ôì³ÉʵÑé½á¹ûÎó²îµÄÖ÷ÒªÔ­ÒòÊÇ£º
 
£®
¢ò£®ÇëÄãÉè¼ÆÒ»¸öµç·À´²âÁ¿µçÁ÷±íA1µÄÄÚ×èr1£¨Ô¼100¦¸£©£¬ÒªÇó·½·¨¼ò½Ý¡¢Óо¡¿ÉÄܸߵIJâÁ¿¾«¶È£¬²¢ÄܲâµÃ¶à×éÊý¾Ý£®¿É¹©Ñ¡ÔñÆ÷²ÄÈçÏ£º
A£®µçѹ±íV£¨Á¿³Ì15V£¬ÄÚ×èRV=10k¦¸£©
B£®µçÁ÷±íA1£¨Á¿³Ì10mA£¬ÄÚ×èr1´ý²â£©
C£®µçÁ÷±íA2£¨Á¿³Ì1000¦ÌA£¬ÄÚ×èr2=800¦¸£©
D£®»¬¶¯±ä×èÆ÷Rl£¨×î´ó×èÖµ20¦¸£©
E£®»¬¶¯±ä×èÆ÷R2£¨×î´ó×èÖµ100¦¸£©
F£®µçÔ´E£¨µç¶¯ÊÆ1.5V£¬ÄÚ×è¿ÉÒÔºöÂÔ£©
G£®µç¼ü¼°µ¼ÏßÈô¸É
£¨1£©Ð¡Ó±Í¬Ñ§Éè¼ÆµÄ²âÁ¿µç·Èçͼ2Ëùʾ£¬ËýËùÉè¼ÆµÄµç·´æÔڶദ´íÎó£¬ÇëÄãÖ¸³öÆäÖеÄÒ»´¦´íÎóÊÇ£º
 
£®
¾«Ó¢¼Ò½ÌÍø
£¨2£©ÇëÔÚ´ðÌâ¾íÐéÏß¿òÄÚ»­³öÄãÉè¼ÆµÄ²âÁ¿µç·£¬²¢ÔÚµç·ÖбêÃ÷ËùÑ¡ÓõÄÆ÷²Ä£®
£¨3£©ÈôÑ¡Ôñ²âÁ¿Êý¾ÝÖеÄÒ»×éÀ´¼ÆËãr1£¬±í´ïʽӦΪr1=
 
£®
·ÖÎö£º¢ñ¢Ùµ¥°ÚÕñ¶¯¾ßÓÐÖÜÆÚÐÔ£¬°ÚÇòÿ¸ô°ë¸öÖÜÆÚ¾­¹ýÖ½´øÖÐÏßÒ»´Î£¬µ¥°ÚÔÚ¸ÃʵÑéÖÐËùÆðµÄ×÷ÓÃÓë´òµã¼ÆʱÆ÷Ïàͬ£®
¢Ú¸ù¾Ý²âÁ¿¼ÓËٶȵÄÔ­Àí¡÷x=aT2£¬TΪµ¥°ÚÖÜÆÚµÄÒ»°ë£®µ¥°ÚÖÜÆÚ¶ÔʵÑé½á¹ûÓ°Ïì×î´ó£®
¢ò¡¢ÒòΪ¾¡¿ÉÄܸߵIJâÁ¿¾«¶È£¬²¢ÄܲâµÃ¶à×éÊý¾Ý£®»¬¶¯±ä×èÆ÷²ÉÓ÷Öѹʽ½Ó·¨£¬µçѹ±íµÄÁ¿³ÌÆ«´ó£¬¿ÉÒÔÑ¡ÓõçÁ÷±íA2×÷Ϊµçѹ±íÊÊÓ㬸ù¾ÝÅ·Ä·¶¨ÂÉÇó³öµçÁ÷±íA1µÄÄÚ×裮
½â´ð£º½â£º¢ñ¢Ùµ¥°ÚÕñ¶¯¾ßÓÐÖÜÆÚÐÔ£¬°ÚÇòÿ¸ô°ë¸öÖÜÆÚ¾­¹ýÖ½´øÖÐÏßÒ»´Î£¬´òµã¼ÆʱÆ÷´òµãÒ²¾ßÓÐÖÜÆÚÐÔ£¬¹Êµ¥°ÚµÄ×÷ÓÃÓë´òµã¼ÆʱÆ÷Ïàͬ£®
¢ÚÉèµ¥°ÚÖÜÆÚΪT£¬Ôò²âÁ¿¼ÓËٶȵÄÔ­ÀíÊÇ¡÷x=a(
T
2
)2
£¬a=
4¡÷x
T2
£¬µ¥°ÚÖÜÆÚ¶ÔʵÑé½á¹ûÓ°Ïì×î´ó£¬¶øµ¥°ÚÖÜÆÚÓë°Ú³¤¼´°ÚÇòÖØÐÄÓëÐüµãµÄ¾àÀëÓйأ¬Ëæ×ÅϸɳÁ÷³ö£¬°ÚÇòÖØÐÄλÖ÷¢Éú¸Ä±ä£¬µ¥°ÚÖÜÆÚ·¢Éú¸Ä±ä£¬¶Ô¼ÓËٶȵIJâÁ¿²úÉúÎó²î£¬¹Ê¶ÔʵÑé½á¹ûÓ°Ïì×î´óµÄÔ­ÒòÊÇ©¶·ÖØÐĵı仯µ¼Ö°ڳ¤±ä»¯£¬´Ó¶ø¸Ä±äµ¥°ÚÖÜÆÚ£¬Ó°Ïì¼ÓËٶȵIJâÁ¿Öµ£®
¢ò¡¢¢ÙÒòΪ¾¡¿ÉÄܸߵIJâÁ¿¾«¶È£¬²¢ÄܲâµÃ¶à×éÊý¾Ý£®»¬¶¯±ä×èÆ÷²ÉÓ÷Öѹʽ½Ó·¨£®ÒòΪµçѹ±íÁ¿³ÌÆ«´ó£¬²âÁ¿Îó²î½Ï´ó£¬¿ÉÒÔÑ¡ÓõçÁ÷±íA2×÷Ϊµçѹ±íÊÊÓ㬵çÁ÷±íA2µÄµçÁ÷³ËÒÔÄÚ×輴ΪµçÁ÷±íA2Á½¶ËµÄµçѹ£¬ËùÒÔÉè¼Æµç·ÖеĴíÎóÊÇ£º²»ÄÜÓõçѹ±íÀ´²âµçѹ£¬»ò»¬¶¯±ä×èÆ÷²»ÄÜÓÃ×÷´®ÁªÏÞÁ÷£»
¢Ú½áºÏÉÏÃæ·ÖÎöµÄÔ­Àíµç·ͼÈçͼ
¾«Ó¢¼Ò½ÌÍø
¢Û¸ù¾Ý²¿·Öµç·ŷķ¶¨ÂÉ£¬ÓУºr1=
I2
I1
r2
£¬Ê½ÖÐI1¡¢I2·Ö±ðÊÇA1¡¢A2µÄ¶ÁÊý
¹Ê´ð°¸Îª£º¢ñ£®£¨1£©A£»£¨2£©Â©¶·ÖØÐÄϽµµ¼Öµ¥°ÚÓÐЧ°Ú³¤±ä»¯£¬´Ó¶øµ¼Öµ¥°ÚÖÜÆڸı䣬ӰÏì¼ÆʱµÄ׼ȷÐÔ£®
¢ò£®£¨1£©¢Ù²»ÄÜÓ÷üÌرíÀ´²âµçѹ£»¢Ú»¬¶¯±ä×èÆ÷²»ÄÜÓÃ×÷´®ÁªÏÞÁ÷£®£¨2£©ÈçͼËùʾ£»£¨3£©r1=
I2
I1
r2
£®
µãÆÀ£º½«ÒÑÖªÄÚµç×èµÄµçÁ÷±íµ±×÷µçѹ±íʹÓã¬Êµ¼ÊÒ²ÊÇ·ü°²·¨²âµç×èµÄÍƹãÐÎʽ£¬ÊÇÎÒÃÇÔÚµç·Éè¼ÆÖо­³£Ê¹Óõ½µÄÒ»ÖÖ·½·¨£®
Á·Ï°²áϵÁдð°¸
Ïà¹ØÏ°Ìâ

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£ºÔĶÁÀí½â

¢ñ£®Îï¿éA1¡¢A2¡¢B1ºÍB2µÄÖÊÁ¿¾ùΪm£¬A1¡¢A2ÓøÕÐÔÇá¸ËÁ¬½Ó£¬B1¡¢B2ÓÃÇáÖʵ¯»ÉÁ¬½Ó£¬Á½¸ö×°Öö¼·ÅÔÚˮƽµÄÖ§ÍÐÎïÉÏ£¬´¦ÓÚƽºâ״̬£¬Èçͼ1Ëùʾ£®½ñͻȻ³·È¥Ö§ÍÐÎï¡¢ÈÃÎï¿éÏÂÂ䣬ÔÚ³ýÈ¥Ö§ÍÐÎïµÄ˲¼ä£¬A2Êܵ½µÄºÏÁ¦ÎªF1£¬B2Êܵ½µÄºÏÁ¦ÎªF2£¬ÔòF1=
mg
mg
£¬F2=
2mg
2mg
£¬

¢ò£®Èçͼ2Ëùʾ£¬ÔÚÖØÁ¦¼ÓËÙ¶ÈΪgµÄ¿Õ¼ä£¬ÓÐÒ»¸ö´øµçºÉÁ¿Îª+QµÄ³¡Ô´µçºÉÖÃÓÚOµã£¬B¡¢CΪÒÔOΪԲÐÄ¡¢°ë¾¶ÎªRµÄÊúÖ±Ô²ÖÜÉϵÄÁ½µã£¬A¡¢B¡¢OÔÚͬһÊúÖ±ÏßÉÏ£¬AB=R£¬O¡¢CÔÚͬһˮƽÏßÉÏ£®ÏÖÔÚÓÐÒ»ÖÊÁ¿Îªm¡¢µçºÉÁ¿Îª-qµÄÓп×СÇò£¬Ñع⻬¾øԵϸ¸ËAC´ÓAµãÓɾ²Ö¹¿ªÊ¼»¬Ï£¬»¬ÖÁCµãʱËٶȵĴóСΪ
5gR
£®ÔòB¡¢AÁ½µã¼äµçÊƲî´óСΪ
mgR
2q
mgR
2q
£¬Èô´ÓAµã×ÔÓÉÊÍ·Å£¬Ï»¬µ½BµãµÄËٶȴóСΪ
3gR
3gR
£®
¢ó£®ÎªÑо¿»¬¿éµÄÔ˶¯£¬Ñ¡Óû¬¿é¡¢¹³Âë¡¢Ö½´ø¡¢ºÁÃ׿̶ȳߡ¢´ø»¬Âֵľ°å¡¢ÒÔ¼°ÓÉ©¶·ºÍϸÏß¹¹³ÉµÄµ¥°ÚµÈ×é³ÉÈçͼ3ËùʾµÄ×°Öã¬ÊµÑéÖУ¬»¬¿éÔÚ¹³Âë×÷ÓÃÏÂÍ϶¯Ö½´ø×öÔȼÓËÙÖ±ÏßÔ˶¯£¬Í¬Ê±Èõ¥°Ú´¹Ö±ÓÚÖ½´øÔ˶¯·½Ïò×öС°Ú·ù°Ú¶¯£¬Â©¶·¿ÉÒÔ©³öºÜϸµÄÓÐÉ«ÒºÌ壬ÔÚÖ½´øÉÏÁôϵĺۼ£¼Ç¼ÁË©¶·ÔÚ²»Í¬Ê±¿ÌµÄλÖã¬Èçͼ4Ëùʾ£®
¢Ù©¶·ºÍϸÏß¹¹³ÉµÄµ¥°ÚÔÚ¸ÃʵÑéÖÐËùÆðµÄ×÷ÓÃÓëÏÂÁÐÄĸöÒÇÆ÷Ïàͬ£¿
A
A
£¨ÌîдÒÇÆ÷ÐòºÅ£©£®
A£®´òµã¼ÆʱÆ÷£»B£®Ãë±í£»C£®ºÁÃ׿̶ȳߣ»D£®µçÁ÷±í
¢ÚÒÑÖªµ¥°ÚÖÜÆÚT=2s£¬ÔÚͼ4ÖÐAB=24.10cm£¬BC=27.90cm£¬CD=31.90cm¡¢DE=36.10cm£¬Ôòµ¥°ÚÔÚ¾­¹ýDµãʱ£¬»¬¿éµÄ˲ʱËÙ¶ÈΪVD=
0.34
0.34
m/s£¬»¬¿éµÄ¼ÓËÙ¶ÈΪa=
0.04
0.04
m/s2£¨±£ÁôÁ½Î»Ð¡Êý£©

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

¾«Ó¢¼Ò½ÌÍøΪÑо¿»¬¿éµÄÔ˶¯£¬Ñ¡Óû¬¿é¡¢¹³Âë¡¢Ö½´ø¡¢ºÁÃ׿̶ȳߡ¢´ø»¬Âֵľ°å¡¢ÒÔ¼°ÓÉ©¶·ºÍϸÏß¹¹³ÉµÄµ¥°ÚµÈ×é³ÉÈçͼ1ËùʾµÄ×°Öã¬ÊµÑéÖУ¬»¬¿éÔÚ¹³Âë×÷ÓÃÏÂÍ϶¯Ö½´ø×öÔȼÓËÙÖ±ÏßÔ˶¯£¬Í¬Ê±Èõ¥°Ú´¹Ö±ÓÚÖ½´øÔ˶¯·½Ïò×öС°Ú·ù°Ú¶¯£¬Â©¶·¿ÉÒÔ©³öºÜϸµÄÓÐÉ«ÒºÌ壬ÔÚÖ½´øÉÏÁôϵĺۼ£¼Ç¼ÁË©¶·ÔÚ²»Í¬Ê±¿ÌµÄλÖã¬Èçͼ2Ëùʾ
¢Ù©¶·ºÍϸÏß¹¹³ÉµÄµ¥°ÚÔÚ¸ÃʵÑéÖÐËùÆðµÄ×÷ÓÃÓëÏÂÁÐÄĸöÒÇÆ÷Ïàͬ£¿
 
£¨ÌîдÒÇÆ÷ÐòºÅ£©
A¡¢´òµã¼ÆʱÆ÷  B¡¢Ãë±í  C¡¢ºÁÃ׿̶ȳߠ D¡¢µçÁ÷±í
¢ÚÈç¹ûÓøÃʵÑé×°ÖòâÁ¿»¬¿é¼ÓËٶȣ¬¶ÔʵÑé½á¹ûÓ°Ïì×î´óµÄÔ­ÒòÊÇ£º
 
£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£ºÔĶÁÀí½â

£¨¢ñ£©ÎªÑо¿»¬¿éµÄÔ˶¯£¬Ñ¡Óû¬¿é¡¢¹³Âë¡¢Ö½´ø¡¢ºÁÃ׿̶ȳߡ¢´ø»¬Âֵľ°å¡¢ÒÔ¼°ÓÉ©¶·ºÍϸÏß¹¹³ÉµÄµ¥°ÚµÈ×é³ÉÈçͼ1ËùʾµÄ×°Öã¬ÊµÑéÖУ¬»¬¿éÔÚ¹³Âë×÷ÓÃÏÂÍ϶¯Ö½´ø×öÔȼÓËÙÖ±ÏßÔ˶¯£¬Í¬Ê±Èõ¥°Ú´¹Ö±ÓÚÖ½´øÔ˶¯·½Ïò×öС°Ú·ù°Ú¶¯£¬Â©¶·¿ÉÒÔ©³öºÜϸµÄÓÐÉ«ÒºÌ壬ÔÚÖ½´øÉÏÁôϵĺۼ£¼Ç¼ÁË©¶·ÔÚ²»Í¬Ê±¿ÌµÄλÖã¬Èçͼ2Ëùʾ
¾«Ó¢¼Ò½ÌÍø
¢Ù©¶·ºÍϸÏß¹¹³ÉµÄµ¥°ÚÔÚ¸ÃʵÑéÖÐËùÆðµÄ×÷ÓÃÓëÏÂÁÐÄĸöÒÇÆ÷Ïàͬ£¿
 
£¨ÌîдÒÇÆ÷ÐòºÅ£©
A¡¢´òµã¼ÆʱÆ÷      B¡¢Ãë±í      C¡¢ºÁÃ׿̶ȳߠ      D¡¢µçÁ÷±í
¢ÚÈç¹ûÓøÃʵÑé×°ÖòâÁ¿»¬¿é¼ÓËٶȣ¬¶ÔʵÑé½á¹ûÓ°Ïì×î´óµÄÔ­ÒòÊÇ£º
 

£¨¢ò£©ÏÖÌṩÈçÏÂÆ÷²Ä£¬²â¶¨¶¨Öµµç×èRx£¨Ô¼Îª5K¦¸£©µÄ×èÖµ
a£®Á½ÏàͬµçÁ÷¼ÆG1¡¢G2£¨50¦ÌA£¬ÄÚ×èÔ¼4K¦¸£©
b£®µç×èÏäR1£¨0¡«9999.9¦¸£©
c£®µç×èÏäR2£¨0¡«99999.9¦¸£©
d£®µçÔ´E£¨µç¶¯ÊÆÔ¼3V£¬ÄÚ×è²»¼Æ£©
e£®»¬¶¯±ä×èÆ÷R£¨×î´ó×èÖµ20¦¸£©
f£®¿ª¹ØÁ½¸ö£¬µ¼ÏßÈô¸É
¢ÙÓÉÓÚµçÁ÷¼ÆÁ¿³ÌºÜС£¬ÐèÒªÏȽ«ËüÃǽøÐиÄ×°£¬Ä³Í¬Ñ§Éè¼ÆÁËÓðëÆ«·¨²âµçÁ÷¼ÆÄÚ×èµÄµç·£¬Èçͼ¼×£¬ÊµÑé¹ý³ÌÈçÏ£ºÏȽ«R2µ÷Ϊ×î´ó£¬È»ºó±ÕºÏK1¡¢K2£¬µ÷½ÚR1¡¢R2£¬±£Ö¤
 
ÂúÆ«£¬Ê¹
 
°ëÆ«£¨ÌîдԪ¼þ·ûºÅ£©Óɴ˲âµÃµçÁ÷¼ÆG2µÄ×èÖµ
¢ÚÈô²âµÃµçÁ÷¼ÆÄÚ×èΪ4.2K¦¸£¬Òª½«G2¸Ä×°³ÉÁ¿³ÌΪ3VµÄµçѹ±í£¬Ðè´®ÁªµÄµç×èֵΪ
 

¢Û²ÉÓøÄ×°ºóµÄµçѹ±í²¢·ü°²·¨²âÁ¿´ý²âµç×è×èÖµ£¬ÇëÔÚÐéÏß¿òÄÚ»­³öʵÑéµç·ͼÒÒ
¾«Ó¢¼Ò½ÌÍø

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

¾«Ó¢¼Ò½ÌÍø¢ñ£®ÎªÑо¿»¬¿éµÄÔ˶¯£¬Ñ¡Óû¬¿é¡¢¹³Âë¡¢Ö½´ø¡¢ºÁÃ׿̶ȳߡ¢´ø»¬Âֵľ°åÒÔ¼°ÓÉ©¶·ºÍϸÏß¹¹³ÉµÄµ¥°ÚµÈ×é³ÉÈçͼ1ËùʾµÄ×°Öã¬ÊµÑéÖУ¬»¬¿éÔÚ¹³Âë×÷ÓÃÏÂÍ϶¯Ö½´ø×öÔȼÓËÙÖ±ÏßÔ˶¯£¬Í¬Ê±Èõ¥°Ú´¹Ö±ÓÚÖ½´øÔ˶¯·½Ïò×öС°Ú·ù°Ú¶¯£¬Â©¶·¿ÉÒÔ©³öºÜϸµÄÓÐÉ«ÒºÌ壬ÔÚÖ½´øÉÏÁôϵĺۼ£¼Ç¼ÁË©¶·ÔÚ²»Í¬Ê±¿ÌµÄλÖã¬Èçͼ2Ëùʾ£®
¢Ù©¶·ºÍϸÏß¹¹³ÉµÄµ¥°ÚÔÚ¸ÃʵÑéÖÐËùÆðµÄ×÷ÓÃÓëÏÂÁÐÄĸöÒÇÆ÷Ïàͬ£¿
 

A£®´òµã¼ÆʱÆ÷      B£®Ãë±í    C£®ºÁÃ׿̶ȳߠ   D£®µçÁ÷±í
¢ÚÈç¹ûÓøÃʵÑé×°ÖòâÁ¿»¬¿é¼ÓËٶȣ¬¶ÔʵÑé½á¹ûÓ°Ïì×î´óµÄÔ­ÒòÊÇ£º
 

¢ò¡¢Ä³´ý²âµç×èRXµÄ×èÖµ´óԼΪ100¦¸£¬ÏÖÒª²âÁ¿Æä×èÖµ£¬ÊµÑéÊÒÌṩÓÐÈçÏÂÆ÷²Ä£º
µçÁ÷±íA1£¨Á¿³Ì40mA¡¢ÄÚ×èr1=10¦¸£©
µçÁ÷±íA2£¨Á¿³Ì100mA¡¢ÄÚ×èÈçԼΪ3¦¸£©
»¬¶¯±ä×èÆ÷R£¬×î´ó×èֵԼΪl0¦¸
¶¨Öµµç×èR0£¨×èֵΪ100¦¸£©
µçÔ´E£¨µç¶¯ÊÆ4V¡¢ÓÐÄÚ×裩
¿ª¹Ø¡¢µ¼ÏßÈô¸É
²âÁ¿ÒªÇ󣺵ç±í¶ÁÊý²»µÃСÓÚÆäÁ¿³ÌµÄ1/2£®Äܲâ¶à×éÊý¾Ý£®
¾«Ó¢¼Ò½ÌÍø
£¨1£©ÇëÄãÔÚÐéÏß¿òÄÚ»­³ö²âÁ¿µç×èRXµÄʵÑéµç·ԭÀíȦ£¨ÓÃËù¸øÆ÷²ÄµÄ·ûºÅ±ê×¢£©
£¨2£©ÓÃÒÑÖªÁ¿ºÍ²âÁ¿µÄÁ¿±íʾRX£¬RX=
 
£¨ÈôÓõ½µç±í¶ÁÊý£¬·Ö±ðÓÃI1¡¢I2±íʾA1¡¢A2µÄ¶ÁÊý£©

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£ºÔĶÁÀí½â

¾«Ó¢¼Ò½ÌÍø£¨¢ñ£©ÎªÑо¿»¬¿éµÄÔ˶¯£¬Ñ¡Óû¬¿é¡¢¹³Âë¡¢Ö½´ø¡¢ºÁÃ׿̶ȳߡ¢´ø»¬Âֵľ°å¡¢ÒÔ¼°ÓÉ©¶·ºÍϸÏß¹¹³ÉµÄµ¥°ÚµÈ×é³ÉÈçͼ1ËùʾµÄ×°Öã¬ÊµÑéÖУ¬»¬¿éÔÚ¹³Âë×÷ÓÃÏÂÍ϶¯Ö½´ø×öÔȼÓËÙÖ±ÏßÔ˶¯£¬Í¬Ê±Èõ¥°Ú´¹Ö±ÓÚÖ½´øÔ˶¯·½Ïò×öС°Ú·ù°Ú¶¯£¬Â©¶·¿ÉÒÔ©³öºÜϸµÄÓÐÉ«ÒºÌ壬ÔÚÖ½´øÉÏÁôϵĺۼ£¼Ç¼ÁË©¶·ÔÚ²»Í¬Ê±¿ÌµÄλÖã¬Èçͼ2Ëùʾ¢Ù©¶·ºÍϸÏß¹¹³ÉµÄµ¥°ÚÔÚ¸ÃʵÑéÖÐËùÆðµÄ×÷ÓÃÓëÏÂÁÐÄĸöÒÇÆ÷Ïàͬ£¿
 
£¨ÌîдÒÇÆ÷ÐòºÅ£©
A£®´òµã¼ÆʱÆ÷B£®Ãë±íC£®ºÁÃ׿̶ȳßD£®µçÁ÷±í
¢ÚÈç¹ûÓøÃʵÑé×°ÖòâÁ¿»¬¿é¼ÓËٶȣ¬¶ÔʵÑé½á¹ûÓ°Ïì×î´óµÄÔ­ÒòÊÇ£º
 

£¨¢ò£©ÈçͼÊÇÓÃÀ´²âÁ¿Î´Öªµç×èRxµÄʵÑéµç·µÄʵÎïÁ¬ÏßʾÒâͼ£¬Í¼ÖÐRxÊÇ´ý²âµç×裬×èֵԼΪ¼¸k¦¸£»EÊǵç³Ø×飬µç¶¯ÊÆ6V£¬ÄÚ×è²»¼Æ£»VÊǵçѹ±í£¬Á¿³Ì3V£¬ÄÚ×èr=3k¦¸£»RÊǵç×èÏ䣬×èÖµ·¶Î§0¡«999¦¸£»R1ÊÇ»¬¶¯±ä×èÆ÷£¬S1ºÍS2Êǵ¥µ¶µ¥ÖÀ¿ª¹Ø£®Ö÷ÒªµÄʵÑé²½ÖèÈçÏ£º
a£®Á¬ºÃµç·ºó£¬ºÏÉÏ¿ª¹ØS1ºÍS2£¬µ÷½Ú»¬¶¯±ä×èÆ÷µÄ»¬Æ¬£¬Ê¹µÃµçѹ±íµÄʾÊýΪ3.0V£®
b£®ºÏÉÏ¿ª¹ØS1£¬¶Ï¿ª¿ª¹ØS2£¬±£³Ö»¬¶¯±ä×èÆ÷µÄ»¬Æ¬Î»Öò»±ä£¬µ÷½Úµç×èÏäµÄ×èÖµ£¬Ê¹µÃµçѹ±íµÄʾÊýΪ1.5V£®
c£®¶Á³öµç×èÏäµÄ×èÖµ£¨µç×èÏäµÄÐýťλÖÃÈçͼËùʾ£©£¬²¢¼ÆËãÇóµÃδ֪µç×èRxµÄ´óС£®
d£®ÊµÑéºóÕûÀíÒÇÆ÷£®
¾«Ó¢¼Ò½ÌÍø
¢Ù¸ù¾ÝʵÎïÁ¬ÏßʾÒâͼ£¬ÔÚÐéÏß¿òÄÚ»­³öʵÑéµÄµç·ͼ£¬Í¼Öбê×¢Ôª¼þµÄ·ûºÅÓ¦ÓëʵÎïÁ¬½ÓͼÏà·û£®
¢Ú¹©Ñ¡ÔñµÄ»¬¶¯±ä×èÆ÷ÓУº»¬¶¯±ä×èÆ÷A£º×î´ó×èÖµ100¦¸£¬¶î¶¨µçÁ÷0.5A£»»¬¶¯±ä×èÆ÷B£º×î´ó×èÖµ20¦¸£®¶î¶¨µçÁ÷1.5A
ΪÁËʹʵÑéµÄϵͳÎó²î¾¡Á¿Ð¡£¬ÊµÑéӦѡÓõĻ¬¶¯±ä×èÆ÷ÊÇ
 
£¨Ìî´úºÅ£©£®
¢Ûδ֪µç×èRx=
 
£®£¨±£Áô2λÓÐЧÊý×Ö£©
¢Ü²âÁ¿ÖµÓëÕæʵֵ±È½Ï£¬²âÁ¿Öµ±ÈÕæʵֵ
 
£®£¨Ìî¡°Æ«´ó¡±¡¢¡°ÏàµÈ¡±»ò¡°Æ«Ð¡¡±£©

²é¿´´ð°¸ºÍ½âÎö>>

ͬ²½Á·Ï°²á´ð°¸