ÌâÄ¿ÄÚÈÝ
Èçͼ¼×Ëùʾ£¬²»¼Æµç×èµÄ¡°U¡±Ðι⻬µ¼Ìå¿ò¼Üˮƽ·ÅÖ㬿ò¼ÜÖмäÇøÓòÓÐÊúÖ±ÏòÉϵÄÔÈÇ¿´Å³¡£¬´Å¸ÐӦǿ¶ÈB=1.0T£¬ÓÐÒ»µ¼Ìå¸ËACºá·ÅÔÚ¿ò¼ÜÉÏ£¬ÆäÖÊÁ¿Îªm=0.10kg£¬µç×èΪR=4.0¦¸£®ÏÖÓÃϸÉþ˨סµ¼Ìå¸Ë£¬Ï¸ÉþµÄÒ»¶Ëͨ¹ý¹â»¬µÄ¶¨»¬ÂÖÈÆÔڵ綯»úµÄתÖáÉÏ£¬ÁíÒ»¶Ëͨ¹ý¹â»¬µÄ¶¨»¬ÂÖÓëÎïÌåDÏàÁ¬£¬ÎïÌåDµÄÖÊÁ¿ÎªM=0.30kg£¬µç¶¯»úµÄÄÚ×èΪr=1.0¦¸£®½Óͨµç·ºó£¬µçѹ±íµÄʾÊýºãΪU=8.0V£¬µçÁ÷±íµÄʾÊýºãΪI=1.0A£¬µç¶¯»úÇ£ÒýÔÀ´¾²Ö¹µÄµ¼Ìå¸ËACƽÐÐÓÚEFÏòÓÒÔ˶¯£¬ÆäÔ˶¯µÄλÒÆ-ʱ¼äͼÏóÈçͼÒÒËùʾ£®È¡g=10m/s2£®Çó£ºÔÈÇ¿´Å³¡µÄ¿í¶È£»
·ÖÎö£ºÍ¨¹ýλÒÆ-ʱ¼äͼÏó·ÖÎöÎïÌåµÄÔ˶¯Çé¿ö£¬Ð±Âʱíʾ³öËٶȵĴóС£®
¶Ôµ¼ÌåACºÍÎïÌåDÊÜÁ¦·ÖÎö£¬ÁгöƽºâµÈʽ£¬ÔËÓÃÄÜÁ¿Êغ㶨ÂÉÇó½â£®
¶Ôµ¼ÌåACºÍÎïÌåDÊÜÁ¦·ÖÎö£¬ÁгöƽºâµÈʽ£¬ÔËÓÃÄÜÁ¿Êغ㶨ÂÉÇó½â£®
½â´ð£º½â£ºÓÉλÒÆ-ʱ¼äͼÏó¿ÉÖª£¬ÔÚt=1.0sºó£¬µ¼Ìå¸Ë×öÔÈËÙÔ˶¯£¬
¸ù¾ÝͼÏóбÂʵÃÔ˶¯ËٶȴóСΪ£ºv=
=2m/s
´Ëʱ£¬¶Ôµ¼ÌåACºÍÎïÌåDÊÜÁ¦·ÖÎö£¬
¸ù¾ÝƽºâÌõ¼þÓУºT=T'+F£¬T'=Mg£»
¶Ôµç¶¯»ú£¬ÓÉÄÜÁ¿¹Øϵ£¬ÓУºIU=Tv+I2r
ÓÉÒÔÉÏÈýʽ£¬¿ÉµÃ£ºT=3.5N£¬F=0.5N
ÓÉF=BIL¡¢I=
¼°E=BLv£¬
µÃ£ºL=
=1.0m
´ð£ºÔÈÇ¿´Å³¡µÄ¿í¶ÈÊÇ1.0m£®
¸ù¾ÝͼÏóбÂʵÃÔ˶¯ËٶȴóСΪ£ºv=
¡÷s |
¡÷t |
´Ëʱ£¬¶Ôµ¼ÌåACºÍÎïÌåDÊÜÁ¦·ÖÎö£¬
¸ù¾ÝƽºâÌõ¼þÓУºT=T'+F£¬T'=Mg£»
¶Ôµç¶¯»ú£¬ÓÉÄÜÁ¿¹Øϵ£¬ÓУºIU=Tv+I2r
ÓÉÒÔÉÏÈýʽ£¬¿ÉµÃ£ºT=3.5N£¬F=0.5N
ÓÉF=BIL¡¢I=
E |
R |
µÃ£ºL=
1 |
B |
|
´ð£ºÔÈÇ¿´Å³¡µÄ¿í¶ÈÊÇ1.0m£®
µãÆÀ£º±¾ÌâÊǵ綯»úµç·Óëµç´Å¸ÐÓ¦µÄ×ۺϣ¬¹Ø¼üÊÇ·ÖÎöλÒÆ-ʱ¼äͼÏóµÄÎïÀíÒâÒåºÍÄÜÁ¿ÈçºÎת»¯£¬¸ù¾ÝÄÜÁ¿Êغ㶨ÂÉÁз½³Ì£®
Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿