ÌâÄ¿ÄÚÈÝ

ÓÃÈçͼËùʾµÄʵÑé×°Öù۲ìË«·ì¸ÉÉæͼÑù£¬Ë«·ìÖ®¼äµÄ¾àÀëÊÇ0.3mm£¬ÓõÄÊǺìÉ«ÂËɫƬ£¬ÔÚë²£Á§ÆÁÉÏ¿ÉÒÔ¿´µ½ºìÉ«¸ÉÉæÌõÎÆ£®
£¨1£©Ã«²£Á§ÆÁÉϵĸÉÉæÌõÎÆÓëË«·ì´¹Ö±»¹ÊÇƽÐУ¿
ƽÐÐ
ƽÐÐ

£¨2£©Èç¹û°Ñë²£Á§ÆÁÏòÔ¶ÀëË«·ìµÄ·½ÏòÒƶ¯£¬ÏàÁÚÁ½ÁÁÌõÎÆÖÐÐĵľàÀë
Ôö´ó
Ôö´ó
£®£¨Ìî¡°Ôö´ó¡±¡¢¡°²»±ä¡±»ò¡°¼õС¡±£©
£¨3£©°ÑºìÉ«ÂËɫƬ»»³ÉÂÌÉ«£¬ÏàÁÚÁ½¸öÁÁÌõÎƼäµÄ¾àÀë
¼õС
¼õС
£®£¨Ìî¡°Ôö´ó¡±¡¢¡°²»±ä¡±»ò¡°¼õС¡±£©
£¨4£©Èç¹û°Ñµ¥·ìÏòË«·ìÒƽüһЩ£¬ÏàÁÚÁ½ÁÁÌõÎÆÖÐÐĵľàÀë
²»±ä
²»±ä
£®£¨Ìî¡°Ôö´ó¡±¡¢¡°²»±ä¡±»ò¡°¼õС¡±£© 
£¨5£©ÔÚij´ÎʵÑéÖУ¬Ë«·ì¼ä¾àd=0.5mm£¬Ë«·ìÓë¹âÆÁ¼ä¾àÀëL=0.5m£¬ÓÃijÖÖµ¥É«¹âÕÕÉäË«·ìµÃµ½¸ÉÉæͼÑùÈçͼ£¬·Ö»®°åÔÚͼÖÐA¡¢BλÖÃʱÓα꿨³ß¶ÁÊýÈçͼ£¬ÔòͼÖÐAλÖõÄÓα꿨³ß¶ÁÊýΪ
11.1mm
11.1mm
£¬BλÖõÄÓα꿨³ß¶ÁÊýΪ
15.6mm
15.6mm
£¬µ¥É«¹âµÄ²¨³¤Îª
6.4¡Á10-7
6.4¡Á10-7
m£®
·ÖÎö£º·¢Éú¸ÉÉæÌõÎÆʱë²£Á§ÆÁÉϵĸÉÉæÌõÎÆÓëË«·ìƽÐУ¬¸ù¾Ý¡÷x=
L
d
¦Ë
ÅжÏÏàÁÚÁ½¸öÁÁÌõÎƵļä¾à±ä»¯£®
Óα꿨³ßµÄ¶ÁÊýµÈÓÚÖ÷³ß¶ÁÊý¼ÓÉÏÓαê¶ÁÊý£¬²»Ðè¹À¶Á£¬Çó³öÏàÁÚÁ½¸öÁÁÌõÎƵļä¾à£¬¸ù¾Ý¡÷x=
L
d
¦Ë
Çó³öµ¥É«¹âµÄ²¨³¤£®
½â´ð£º½â£º£¨1£©·¢Éú¸ÉÉæÌõÎÆʱë²£Á§ÆÁÉϵĸÉÉæÌõÎÆÓëË«·ìƽÐУ®
£¨2£©¸ù¾Ý¡÷x=
L
d
¦Ë
Öª£¬°Ñë²£Á§ÆÁÏòÔ¶ÀëË«·ìµÄ·½ÏòÒƶ¯£¬LÔö´ó£¬ÔòÏàÁÚÁ½ÁÁÌõÎÆÖÐÐĵľàÀëÔö´ó£®
£¨3£©¸ù¾Ý¡÷x=
L
d
¦Ë
Öª£¬°ÑºìÉ«ÂËɫƬ»»³ÉÂÌÉ«£¬²¨³¤¼õС£¬ÔòÏàÁÚÁ½ÁÁÌõÎÆÖÐÐĵľàÀë¼õС£®
£¨4£©µ¥·ìÓëË«·ì¼äµÄ¾àÀë²»Ó°ÏìÌõÎƵļä¾à£¬ËùÒÔÏàÁÚÁ½ÁÁÌõÎÆÖÐÐĵľàÀë²»±ä£®
£¨5£©AλÖÃÓα꿨³ßµÄÖ÷³ß¶ÁÊýΪ11mm£¬Óαê¶ÁÊýΪ0.1¡Á1mm=0.1mm£¬×îÖÕ¶ÁÊýΪ11.1mm£®BλÖÃÓα꿨³ßÖ÷³ß¶ÁÊýΪ15mm£¬Óαê¶ÁÊýΪ0.1¡Á6mm=0.6mm£¬×îÖÕ¶ÁÊýΪ15.6mm£®ÔòÏàÁÚÁ½¸öÁÁÌõÎƵļä¾à¡÷x=
15.6-11.1
7
mm=0.64mm
£¬¸ù¾Ý¡÷x=
L
d
¦Ë
µÃ£¬¦Ë=
¡÷xd
L
=6.4¡Á10-7m£®
¹Ê´ð°¸Îª£º£¨1£©Æ½ÐÐ £¨2£©Ôö´ó £¨3£©¼õС  £¨4£©²»±ä  £¨5£©11.1mm  15.6mm    6.4¡Á10-7m£®
µãÆÀ£º½â¾ö±¾ÌâµÄ¹Ø¼üÕÆÎÕÓα꿨³ßµÄ¶ÁÊý·½·¨£¬ÒÔ¼°ÕÆÎÕË«·ì¸ÉÉæÌõÎƵļä¾à¹«Ê½¡÷x=
L
d
¦Ë
£®
Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿
ÓÃÈçͼËùʾµÄʵÑé×°ÖÃÑéÖ¤»úеÄÜÊغ㶨ÂÉ£®ÊµÑéËùÓõĵçԴΪѧÉúµçÔ´£¬Êä³öµçѹΪ6VµÄ½»Á÷µçºÍÖ±Á÷µçÁ½ÖÖ£®ÖØ´¸´Ó¸ß´¦Óɾ²Ö¹¿ªÊ¼ÏÂÂ䣬ÖØ´¸ÉÏÍÏ×ŵÄÖ½´ø´ò³öһϵÁеĵ㣬¶ÔÖ½´øÉϵĵ㼣½øÐвâÁ¿£¬¼´¿ÉÑéÖ¤»úеÄÜÊغ㶨ÂÉ£®
£¨1£©ÏÂÃæÁоÙÁ˸ÃʵÑéµÄ¼¸¸ö²Ù×÷²½Ö裺
A£®°´ÕÕͼʾµÄ×°Öð²×°Æ÷¼þ£»
B£®½«´òµã¼ÆʱÆ÷½Óµ½µçÔ´µÄ¡°Ö±Á÷Êä³ö¡±ÉÏ£»
C£®ÓÃÌìƽ²â³öÖØ´¸µÄÖÊÁ¿£»
D£®ÏÈÊÍ·ÅÖ½´ø£¬ÔÙ½ÓͨµçÔ´£¬´ò³öÒ»ÌõÖ½´ø£»
E£®ÓÃÃë±í²â³öÖØ´¸ÏÂÂäµÄʱ¼ä£»
F£®²âÁ¿Ö½´øÉÏijЩµã¼äµÄ¾àÀ룻
G£®¸ù¾Ý²âÁ¿µÄ½á¹û¼ÆËãÖØ´¸ÏÂÂä¹ý³ÌÖмõÉÙµÄÖØÁ¦ÊÆÄÜÊÇ·ñµÈÓÚÔö¼ÓµÄ¶¯ÄÜ£®
ÆäÖÐûÓбØÒª½øÐеIJ½ÖèÊÇ
CE
CE
£¨ÌîÑ¡Ï
ÆäÖвÙ×÷´íÎóµÄ²½ÖèÊÇ
BD
BD
£¨ÌîÑ¡Ï
£¨2£©ÔÚʵÑéÖУ¬ÖÊÁ¿m=1kgµÄÎïÌå×ÔÓÉÏÂÂ䣬µÃµ½ÈçͼËùʾµÄÖ½´ø£¬ÏàÁÚ¼ÆÊýµã¼äµÄʱ¼ä¼ä¸ôΪ0.04s£®ÄÇô´Ó´òµã¼ÆʱÆ÷´òÏÂÆðµãPµ½´òÏÂBµãµÄ¹ý³ÌÖУ¬ÎïÌåÖØÁ¦ÊÆÄܵļõÉÙÁ¿¡÷Ep=
2.28
2.28
J£¬´Ë¹ý³ÌÖÐÎïÌ嶯ÄܵÄÔö¼ÓÁ¿¡÷Ek=
2.26
2.26
J£®£¨È¡g=9.8m/s2£¬½á¹û±£ÁôÈýλÓÐЧÊý×Ö£©
£¨3£©ÓÃv±íʾ¸÷¼ÆÊýµãµÄËٶȣ¬h±íʾ¸÷¼ÆÊýµãµ½PµãµÄ¾àÀ룬ÒÔ
v2
2
Ϊ×ÝÖᣬÒÔhΪºáÖᣬ¸ù¾ÝʵÑéÊý¾Ý»æ³ö 
v2
2
¡«hµÄͼÏߣ¬ÈôͼÏßµÄбÂʵÈÓÚij¸öÎïÀíÁ¿µÄÊýֵʱ£¬ËµÃ÷ÖØÎïÏÂÂä¹ý³ÌÖлúеÄÜÊغ㣬¸ÃÎïÀíÁ¿ÊÇ
µ±µØÖØÁ¦¼ÓËÙ¶Èg
µ±µØÖØÁ¦¼ÓËÙ¶Èg
£®
¢ñ£®ÓÃÈçͼËùʾµÄʵÑé×°ÖÃÀ´Ñé֤ţ¶ÙµÚ¶þ¶¨ÂÉ£®
¢ÙΪÏû³ýĦ²ÁÁ¦µÄÓ°Ï죬ʵÑéǰƽºâĦ²ÁÁ¦µÄ¾ßÌå²Ù×÷Ϊ£ºÈ¡ÏÂ
É°Í°
É°Í°
£¬°Ñľ°å²»´ø»¬ÂÖµÄÒ»¶ËÊʵ±µæ¸ß²¢·´¸´µ÷½Ú£¬Ö±µ½ÇáÍÆС³µºó£¬Ð¡³µÄÜÑØľ°å×ö
ÔÈËÙÖ±Ïß
ÔÈËÙÖ±Ïß
Ô˶¯£®
¢Úij´ÎʵÑé²âµÃµÄÊý¾ÝÈçϱíËùʾ£¬¸ù¾ÝÕâЩÊý¾ÝÔÚ×ø±êͼÖÐÃèµã²¢×÷³öa-
1
m
ͼÏߣ¬´Óa-
1
m
ͼÏßÇóµÃºÏÍâÁ¦´óСΪ
0.3
0.3
N£¨¼ÆËã½á¹û±£ÁôÁ½Î»ÓÐЧÊý×Ö£©£®
¢ò£®Ä³ÎïÀíÐËȤС×éµÄͬѧÏëÓÃÈçͼ¼×ËùʾµÄµç·̽¾¿Ò»ÖÖÈÈÃôµç×èµÄζÈÌØÐÔ£®
£¨1£©Çë°´µç·ԭÀíͼ½«Í¼ÒÒÖÐËùȱµÄµ¼Ïß²¹½ÓÍêÕû£®ÎªÁ˱£Ö¤ÊµÑéµÄ°²È«£¬»¬¶¯±ä×èÆ÷µÄ»¬¶¯´¥Í·PÔÚʵÑ鿪ʼǰӦÖÃÓÚ
a
a
¶Ë£¨Ñ¡Ìî¡°a¡±»ò¡°b¡±£©

£¨2£©ÕýÈ·Á¬½Óµç·ºó£¬ÔÚ±£ÎÂÈÝÆ÷ÖÐ×¢ÈëÊÊÁ¿ÀäË®£®½ÓͨµçÔ´£¬µ÷½ÚR¼Çϵçѹ±íºÍµçÁ÷±íµÄʾÊý£¬¼ÆËã³ö¸ÃζÈϵĵç×èÖµ£¬½«ËüÓë´ËʱµÄË®ÎÂÒ»Æð¼ÇÈë±íÖУ®¸Ä±äË®µÄζȣ¬²âÁ¿³ö²»Í¬Î¶Èϵĵç×èÖµ£®¸Ã×éͬѧµÄ²âÁ¿Êý¾ÝÈçϱíËùʾ£¬ÇëÄãÔÚͼ±ûµÄ×ø±êÖ½Öл­³ö¸ÃÈÈÃôµç×èµÄR-t¹Øϵͼ£®¶Ô±ÈʵÑé½á¹ûÓëÀíÂÛÇúÏߣ¨Í¼ÖÐÒÑ»­³ö£©¿ÉÒÔ¿´³ö¶þÕßÓÐÒ»¶¨µÄ²îÒ죮³ýÁ˶ÁÊýµÈżȻÎó²îÍ⣬»¹¿ÉÄÜÊÇʲôԭÒòÔì³É£¿
µçÁ÷±íµÄ·ÖѹÔì³Éµç×èµÄ²âÁ¿Öµ×ܱÈÕæʵֵ´ó»òËæ×ÅζȵÄÉý¸ß£¬ÈÈÃôµç×èµÄ×èÖµ±äС£¬µçÁ÷±íµÄ·Öѹ×÷ÓøüÃ÷ÏÔ£¬Ïà¶ÔÎó²î¸ü´ó
µçÁ÷±íµÄ·ÖѹÔì³Éµç×èµÄ²âÁ¿Öµ×ܱÈÕæʵֵ´ó»òËæ×ÅζȵÄÉý¸ß£¬ÈÈÃôµç×èµÄ×èÖµ±äС£¬µçÁ÷±íµÄ·Öѹ×÷ÓøüÃ÷ÏÔ£¬Ïà¶ÔÎó²î¸ü´ó
£®
ζÈ/¡æ 30 40 50 60 70 80 90 100
×èÖµ/k¦¸ 7.8 5.3 3.4 2.2 1.5 1.1 0.9 0.7
£¨3£©ÒÑÖªµç×èµÄÉ¢Èȹ¦ÂʿɱíʾΪPÉ¢=k£¨t-t0£©£¬ÆäÖÐkÊDZÈÀýϵÊý£¬tÊǵç×èµÄζȣ¬t0ÊÇÖÜΧ»·¾³Î¶ȣ®ÏÖ½«±¾ÊµÑéËùÓõÄÈÈÃôµç×è½Óµ½Ò»¸öºãÁ÷µçÔ´ÖУ¬Ê¹Á÷¹ýËüµÄµçÁ÷ºãΪ40mA£¬t0=20¡æ£¬k=0.16W/¡æ£®ÓÉÀíÂÛÇúÏß¿ÉÖª£º
¢Ù¸Ãµç×èµÄζȴóÔ¼Îȶ¨ÔÚ
50
50
¡æ£»    ¢Ú´Ëʱµç×èµÄ·¢Èȹ¦ÂÊΪ
4.8
4.8
W£®

Î¥·¨ºÍ²»Á¼ÐÅÏ¢¾Ù±¨µç»°£º027-86699610 ¾Ù±¨ÓÊÏ䣺58377363@163.com

¾«Ó¢¼Ò½ÌÍø