Á½Í¬Ñ§ÓÃͼ£¨a£©ÖеÄʵÑé×°ÖÃ×ö¡°Ñо¿¼ÓËÙ¶ÈÓëÖÊÁ¿¹Øϵ¡±µÄʵÑ飮

£¨1£©¸ÃʵÑéÖвÉÓÿØÖƱäÁ¿·¨£¬±£³ÖС³µËùÊÜÀ­Á¦²»±ä£¬ÓÃÉ°ºÍÉ°Í°ËùÊܵÄÖØÁ¦×÷ΪС³µËùÊÜÀ­Á¦£¬ÎªÁ˼õСʵÑéÎó²î£¬Ó¦Ê¹É°ºÍÉ°Í°ÖÊÁ¿¾¡Á¿______Щ£®£¨Ìî¡°´ó¡±»ò¡°Ð¡¡°£©
£¨2£©±£³ÖС³µËùÊÜÀ­Á¦²»±ä£¬¸Ä±äС³µµÄÖÊÁ¿£¬¶à´ÎÖظ´²âÁ¿£®ÔÚij´ÎʵÑéÖиù¾Ý²âµÃµÄ¶à×éÊý¾Ý¿É»­³öÊýѧ¹«Ê½¹ØϵͼÏߣ®
һͬѧÔÚʵÑéÖв¢Ã»ÓвÉȡƽºâĦ²ÁÁ¦µÄ´ëÊ©£¬Ôò»­³öµÄÊýѧ¹«Ê½Í¼Ïß¿ÉÄÜ£¨b£©ÖеÄ______£®£¨Ìî¡°¼×¡±»ò¡°ÒÒ¡±»ò¡°±û¡±£©
£¨3£©ÁíһͬѧÔÚʵÑé¹ý³ÌÖб£³ÖË®³µµÄÖÊÁ¿²»±ä£¬¸Ä±äÉ°ºÍÉ°Í°µÄÖÊÁ¿£¬»­³öµÄaÒ»FͼÏßÈçͼ£¨c£©Ëùʾ£¬Ôì³ÉÕâÖÖÏÖÏóµÄÖ÷ÒªÔ­ÒòÊÇ______£®
A£®Ä¾°åÓëˮƽÃæ¼äµÄ¼Ð½ÇÌ«´ó¡¡ B£®Ä¾°åÓëˮƽÃæ¼äµÄ¼Ð½Ç̫С
C£®É°ºÍÉ°Í°µÄ×ÜÖÊÁ¿½Ï´ó¡¡¡¡D£®ËùÓÃС³µµÄÖÊÁ¿½Ï´ó£®

½â£º£¨1£©µ±ÏµÍ³¼ÓËٶȽÏСʱ£¬É°ºÍÉ°Í°ËùÊܵÄÖØÁ¦Ô¼µÈÓÚС³µËùÊÜÀ­Á¦£¬¹ÊӦʹɰºÍÉ°Í°ÖÊÁ¿¾¡Á¿Ð¡Ð©
£¨2£©Ã»ÓÐƽºâĦ²ÁÁ¦£¬ÓÉÅ£¶ÙµÚ¶þ¶¨Âɵ㺣ºF-f=Ma£¬Ôò£ºa==£¬µ±F=0ʱ£¬a=-£¬¿ÉµÃͼÏóÔÚ×ÝÖáµÄ½Ø¾àΪ¸º£¬¹ÊÑ¡±û
£¨3£©Ã»ÓÐÊ©¼ÓÍâÁ¦Ê±£¬Ð¡³µÒѾ­»ñµÃ¼ÓËٶȣ¬¹ÊƽºâĦ²ÁÁ¦¹ý¶È£»ÔÚÑо¿¼ÓËٶȸúС³µÖÊÁ¿MµÄ¹Øϵʱ£¬±£³Öm²»±ä£¬¸Ä±äС³µÖÊÁ¿M£¬ÔÚС³µÖÊÁ¿MÔ¶´óÓÚÖØÎïÖÊÁ¿mʱ£¬¼´µ±Âú×ãM?mʱ£¬¿ÉÒÔÈÏΪС³µÊܵ½µÄÀ­Á¦£¨ºÏÁ¦£©F=mg£¬´Ëʱ¼ÓËÙ¶ÈaÓëС³µÖÊÁ¿M³É·´±È£¬a-FͼÏóΪ¹ýÔ­µãµÄÖ±Ïߣ¬µ±Ð¡³µÖÊÁ¿M²»Ô¶´óÓÚÖØÎïÖÊÁ¿mʱ£¬Ð¡³µÊܵ½µÄÀ­Á¦Ã÷ÏÔСÓÚÖØÎïÖØÁ¦£¬Í¼ÏóÏòÏÂÍäÇú
¹Ê´ð°¸Îª£º£¨1£©Ð¡ £¨2£©±û £¨3£©AC
·ÖÎö£º£¨1£©ÏµÍ³¼ÓËÙÔ˶¯£¬¶ÔÉ°Í°À´½²´¦ÓÚʧÖØ״̬£¬Ôì³ÉÊÔÑéÎó²î£¬¹ÊÓ¦¼õСʧÖØ£¬Ó¦Ê¹É°ºÍÉ°Í°ÖÊÁ¿¾¡Á¿Ð¡Ð©
£¨2£©Ã»ÓÐƽºâĦ²ÁÁ¦£¬Ôò±Ø¶¨µ±À­Á¦Ôö¼Óµ½Ò»¶¨ÊýÖµºó£¬Ð¡³µ²ÅÄÜÔ˶¯²úÉú¼ÓËٶȣ¬¼´£ºF-f=Ma
£¨3£©Ã»ÓÐÊ©¼ÓÍâÁ¦Ê±£¬Ð¡³µÒѾ­»ñµÃ¼ÓËٶȣ¬¹ÊƽºâĦ²ÁÁ¦¹ý¶È£¬µ±À­Á¦¹ý´óʱ£¬É°Í°Ê§ÖØÏÖÏóºÜÃ÷ÏÔ£¬µ¼ÖÂaÓëF¹Øϵ²»³ÉÏßÐÔ
µãÆÀ£º¶ÔÓÚʵÑéÎÒÃÇÒªÃ÷ȷʵÑéÔ­Àí¡¢¾ßÌåʵÑé²Ù×÷ÒÔ¼°Êý¾Ý´¦ÀíµÈ£¬Í¬Ê±ÒªÇå³þÿһÏî²Ù×÷´æÔÚµÄÀíÓÉ£¬±ÈÈçΪʲôҪƽºâĦ²ÁÁ¦£¬ÎªÊ²Ã´ÒªÏȽÓͨµçÔ´ºóÊÍ·ÅÖ½´øµÈ
Á·Ï°²áϵÁдð°¸
Ïà¹ØÏ°Ìâ

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

£¨2012?°ö²ºÄ£Ä⣩ijͬѧÀûÓÃͼ£¨a£©ËùʾµÄµçÆ÷Ñо¿µÆÅÝL1£¨6V£¬1.5W£©£¬L2£¨6V£¬10W£©µÄ·¢¹âÇé¿ö£¨¼ÙÉèµÆÅݵç×èºã¶¨£©£¬Í¼£¨b£©ÎªÊµÎïͼ£®
£¨1£©Ëû·Ö±ð½«L1£¬L2½ÓÈëͼ£¨a£©ÖеÄÐéÏß¿òλÖã¬Òƶ¯»¬¶¯±ä×èÆ÷µÄ»¬Æ¬P£¬µ±µçѹ±íʾÊýΪ6Vʱ£¬·¢ÏÖµÆÅݾùÄÜÕý³£·¢¹â£¬ÔÚͼ£¨b£©ÖУ¬Óñʻ­Ïß´úÌæµ¼Ïß½«µç·²¹ÍêÕû£®
£¨2£©½Ó×ÅËû½«L1ºÍL2´®Áªºó½ÓÈëͼ£¨a£©ÖеÄÐéÏß¿òλÖã¬Òƶ¯»¬¶¯±ä×èÆ÷µÄ»¬Æ¬P£¬µ±µçѹÊýΪ6Vʱ£¬·¢ÏÖL1·¢¹â£¬L2²»·¢¹â£¨Á½µÆ¾ùδ³öÏ̷ֶÇé¿ö£©£¬³öÏÖÕâÖÖÏÖÏóµÄÔ­ÒòÊÇ£º
ÓÉÓÚRL1±ÈRL2СµÃ¶à£¬µÆÅÝL2·ÖµÃµÄµçѹºÜС£¬ËäÈ»ÓеçÁ÷¶É¹ý£¬µ«¹¦ÂʺÜС£¬²»ÄÜ·¢¹â
ÓÉÓÚRL1±ÈRL2СµÃ¶à£¬µÆÅÝL2·ÖµÃµÄµçѹºÜС£¬ËäÈ»ÓеçÁ÷¶É¹ý£¬µ«¹¦ÂʺÜС£¬²»ÄÜ·¢¹â
£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

¹è¹âµç³ØÊÇÒ»Öֿɽ«¹âÄÜת»»ÎªµçÄܵÄÆ÷¼þ£®Ä³Í¬Ñ§ÓÃͼ£¨a£©ËùʾµÄµç·Ñо¿¹è¹âµç³ØµÄ·ü°²ÌØÐÔÇúÏߣ®Í¼ÖÐR0ΪÒÑÖª¶¨Öµµç×裬Á½¸öµçѹ±í¾ùÊÓΪÀíÏëµçѹ±í£®

£¨1£©Çë¸ù¾Ýͼ£¨a£©ËùʾµÄµç·ͼ£¬Óñʻ­Ïß´úÌæµ¼Ïß½«Í¼£¨b£©ÖеÄʵÎïͼ²¹³äÍêÕû£®
£¨2£©ÊµÑéÒ»£ºÓÃÒ»¶¨Ç¿¶ÈµÄ¹âÕÕÉä¹è¹âµç³Ø£¬µ÷½Ú»¬¶¯±ä×èÆ÷£¬Í¨¹ý²âÁ¿ºÍ¼ÆËãµÃµ½¸Ãµç³ØµÄU-IÇúÏߣ¬Èçͼ£¨c£©Öеļ×Ïߣ®ÓÉ´Ë¿ÉÖªµç³ØµÄÄÚ×èËæµçÁ÷µÄÔö´ó¶ø
Ôö´ó
Ôö´ó
£¨Ñ¡Ìî¡°Ôö´ó¡±¡¢¡°¼õС¡±»ò¡°²»±ä¡±£©£¬¶Ì·µçÁ÷Ϊ
295
295
¦ÌA£¬µç¶¯ÊÆΪ
2.6
2.6
V£®
£¨3£©ÊµÑé¶þ£º¼õС¹âµÄÇ¿¶È£¬Öظ´ÊµÑ飬µÃµ½µÄU-IÇúÏßÈçͼ£¨c£©ÖеÄÒÒÏßËùʾ£®
µ±»¬¶¯±ä×èÆ÷µÄµç×èΪijһֵʱ£¬ÊµÑéÒ»ÖеÄV1±íµÄʾÊýΪ1.5V£¬±£³Ö¸Ã×èÖµ²»±ä£¬ÔÚʵÑé¶þÖÐÍâµç·ÏûºÄµÄµç¹¦ÂÊΪ
0.14
0.14
mW£¨¼ÆËã½á¹û±£ÁôÁ½Î»ÓÐЧÊý×Ö£©£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

Á½Í¬Ñ§ÓÃͼ£¨a£©ÖеÄʵÑé×°ÖÃ×ö¡°Ñо¿¼ÓËÙ¶ÈÓëÖÊÁ¿¹Øϵ¡±µÄʵÑ飮

£¨1£©¸ÃʵÑéÖвÉÓÿØÖƱäÁ¿·¨£¬±£³ÖС³µËùÊÜÀ­Á¦²»±ä£¬ÓÃÉ°ºÍÉ°Í°ËùÊܵÄÖØÁ¦×÷ΪС³µËùÊÜÀ­Á¦£¬ÎªÁ˼õСʵÑéÎó²î£¬Ó¦Ê¹É°ºÍÉ°Í°ÖÊÁ¿¾¡Á¿
С
С
Щ£®£¨Ìî¡°´ó¡±»ò¡°Ð¡¡°£©
£¨2£©±£³ÖС³µËùÊÜÀ­Á¦²»±ä£¬¸Ä±äС³µµÄÖÊÁ¿£¬¶à´ÎÖظ´²âÁ¿£®ÔÚij´ÎʵÑéÖиù¾Ý²âµÃµÄ¶à×éÊý¾Ý¿É»­³öa-
1
M
¹ØϵͼÏߣ®
һͬѧÔÚʵÑéÖв¢Ã»ÓвÉȡƽºâĦ²ÁÁ¦µÄ´ëÊ©£¬Ôò»­³öµÄa-
1
M
ͼÏß¿ÉÄÜ£¨b£©ÖеÄ
±û
±û
£®£¨Ìî¡°¼×¡±»ò¡°ÒÒ¡±»ò¡°±û¡±£©
£¨3£©ÁíһͬѧÔÚʵÑé¹ý³ÌÖб£³ÖË®³µµÄÖÊÁ¿²»±ä£¬¸Ä±äÉ°ºÍÉ°Í°µÄÖÊÁ¿£¬»­³öµÄaÒ»FͼÏßÈçͼ£¨c£©Ëùʾ£¬Ôì³ÉÕâÖÖÏÖÏóµÄÖ÷ÒªÔ­ÒòÊÇ
AC
AC
£®
A£®Ä¾°åÓëˮƽÃæ¼äµÄ¼Ð½ÇÌ«´ó   B£®Ä¾°åÓëˮƽÃæ¼äµÄ¼Ð½Ç̫С
C£®É°ºÍÉ°Í°µÄ×ÜÖÊÁ¿½Ï´ó    D£®ËùÓÃС³µµÄÖÊÁ¿½Ï´ó£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º2012-2013ѧÄêɽ¶«Ê¡Íþº£ÊÐÈéɽһÖиßÈý£¨ÉÏ£©Ô¿¼ÎïÀíÊÔ¾í£¨12Ô·ݣ©£¨½âÎö°æ£© ÌâÐÍ£º½â´ðÌâ

Á½Í¬Ñ§ÓÃͼ£¨a£©ÖеÄʵÑé×°ÖÃ×ö¡°Ñо¿¼ÓËÙ¶ÈÓëÖÊÁ¿¹Øϵ¡±µÄʵÑ飮

£¨1£©¸ÃʵÑéÖвÉÓÿØÖƱäÁ¿·¨£¬±£³ÖС³µËùÊÜÀ­Á¦²»±ä£¬ÓÃÉ°ºÍÉ°Í°ËùÊܵÄÖØÁ¦×÷ΪС³µËùÊÜÀ­Á¦£¬ÎªÁ˼õСʵÑéÎó²î£¬Ó¦Ê¹É°ºÍÉ°Í°ÖÊÁ¿¾¡Á¿______Щ£®£¨Ìî¡°´ó¡±»ò¡°Ð¡¡°£©
£¨2£©±£³ÖС³µËùÊÜÀ­Á¦²»±ä£¬¸Ä±äС³µµÄÖÊÁ¿£¬¶à´ÎÖظ´²âÁ¿£®ÔÚij´ÎʵÑéÖиù¾Ý²âµÃµÄ¶à×éÊý¾Ý¿É»­³ö¹ØϵͼÏߣ®
һͬѧÔÚʵÑéÖв¢Ã»ÓвÉȡƽºâĦ²ÁÁ¦µÄ´ëÊ©£¬Ôò»­³öµÄͼÏß¿ÉÄÜ£¨b£©ÖеÄ______£®£¨Ìî¡°¼×¡±»ò¡°ÒÒ¡±»ò¡°±û¡±£©
£¨3£©ÁíһͬѧÔÚʵÑé¹ý³ÌÖб£³ÖË®³µµÄÖÊÁ¿²»±ä£¬¸Ä±äÉ°ºÍÉ°Í°µÄÖÊÁ¿£¬»­³öµÄaÒ»FͼÏßÈçͼ£¨c£©Ëùʾ£¬Ôì³ÉÕâÖÖÏÖÏóµÄÖ÷ÒªÔ­ÒòÊÇ______£®
A£®Ä¾°åÓëˮƽÃæ¼äµÄ¼Ð½ÇÌ«´ó   B£®Ä¾°åÓëˮƽÃæ¼äµÄ¼Ð½Ç̫С
C£®É°ºÍÉ°Í°µÄ×ÜÖÊÁ¿½Ï´ó    D£®ËùÓÃС³µµÄÖÊÁ¿½Ï´ó£®

²é¿´´ð°¸ºÍ½âÎö>>

ͬ²½Á·Ï°²á´ð°¸