ÌâÄ¿ÄÚÈÝ
ÈçͼËùʾ£¬Ò»´øµç΢Á£ÖÊÁ¿Îªm=2.0¡Á10-11kg¡¢µçºÉÁ¿q=+1.0¡Á10-5C£¬´Ó¾²Ö¹¿ªÊ¼¾µçѹΪU1=100VµÄµç³¡¼ÓËÙºó£¬Ë®Æ½½øÈëÁ½Æ½ÐнðÊô°å¼äµÄƫתµç³¡ÖУ¬Î¢Á£Éä³öµç³¡Ê±µÄƫת½Ç¦È=60¡ã£¬²¢½Ó×ÅÑذ뾶·½Ïò½øÈëÒ»¸ö´¹Ö±Ö½ÃæÏòÍâµÄÔ²ÐÎÔÈÇ¿´Å³¡ÇøÓò£¬Î¢Á£Éä³ö´Å³¡Ê±µÄƫת½ÇҲΪ¦È=60¡ã¡£ÒÑ֪ƫתµç³¡ÖнðÊô°å³¤L=
£¬Ô²ÐÎÔÈÇ¿´Å³¡µÄ°ë¾¶R=
£¬ÖØÁ¦ºöÂÔ²»¼Æ¡£Çó£º
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/201408241308515854330.jpg)
СÌâ1:´øµç΢Á£¾U1=100VµÄµç³¡¼ÓËÙºóµÄËÙÂÊ£»
СÌâ2:Á½½ðÊô°å¼äƫתµç³¡µÄµç³¡Ç¿¶ÈE£»
СÌâ3:ÔÈÇ¿´Å³¡µÄ´Å¸ÐӦǿ¶ÈµÄ´óС¡£
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824130851523552.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824130851554584.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/201408241308515854330.jpg)
СÌâ1:´øµç΢Á£¾U1=100VµÄµç³¡¼ÓËÙºóµÄËÙÂÊ£»
СÌâ2:Á½½ðÊô°å¼äƫתµç³¡µÄµç³¡Ç¿¶ÈE£»
СÌâ3:ÔÈÇ¿´Å³¡µÄ´Å¸ÐӦǿ¶ÈµÄ´óС¡£
СÌâ1:1£® 0¡Á104m/s
СÌâ2:
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824130851617711.png)
СÌâ3:
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824130851648831.png)
£¨1£©´øµç΢Á£¾¼ÓËٵ糡¼ÓËÙºóËÙ¶ÈΪv1£¬
¸ù¾Ý¶¯Äܶ¨Àí£º
£¨2·Ö£©
=1£® 0¡Á104m/s £¨2·Ö£©
£¨2£©´øµç΢Á£ÔÚƫתµç³¡ÖÐÖ»Êܵ糡Á¦×÷Óã¬×öÀàƽÅ×Ô˶¯¡£ÔÚˮƽ·½Ïò΢Á£×öÔÈËÙÖ±ÏßÔ˶¯¡£Ë®Æ½·½Ïò£º
£¨1·Ö£©
´øµç΢Á£ÔÚÊúÖ±·½Ïò×öÔȼÓËÙÖ±ÏßÔ˶¯£¬¼ÓËÙ¶ÈΪa£¬³öµç³¡Ê±ÊúÖ±·½ÏòËÙ¶ÈΪv2
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/201408241308518823143.jpg)
ÊúÖ±·½Ïò£º
£¨1·Ö£©
Óɼ¸ºÎ¹Øϵ
£¨1·Ö£© E=10000V/m£¨1·Ö£©
£¨3£©Éè´øµçÁ£×Ó½ø´Å³¡Ê±µÄËٶȴóСΪv£¬Ôò
£¨1·Ö£©
ÓÉÁ£×ÓÔ˶¯µÄ¶Ô³ÆÐÔ¿ÉÖª£¬ÈëÉäËٶȷ½Ïò¹ý´Å³¡ÇøÓòÔ²ÐÄ£¬Ôò³öÉäËٶȷ´ÏòÑÓ³¤Ïß¹ý´Å³¡ÇøÓòÔ²ÐÄ£¬Á£×ÓÔڴų¡ÖеÄÔ˶¯¹ì¼£ÈçͼËùʾ
Ôò¹ì¼£°ë¾¶Îª
£¨1·Ö£© ÓÉ
£¨1·Ö£©
µÃ
£¨1·Ö£©
¸ù¾Ý¶¯Äܶ¨Àí£º
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824130851804830.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824130851835787.png)
£¨2£©´øµç΢Á£ÔÚƫתµç³¡ÖÐÖ»Êܵ糡Á¦×÷Óã¬×öÀàƽÅ×Ô˶¯¡£ÔÚˮƽ·½Ïò΢Á£×öÔÈËÙÖ±ÏßÔ˶¯¡£Ë®Æ½·½Ïò£º
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824130851866532.png)
´øµç΢Á£ÔÚÊúÖ±·½Ïò×öÔȼÓËÙÖ±ÏßÔ˶¯£¬¼ÓËÙ¶ÈΪa£¬³öµç³¡Ê±ÊúÖ±·½ÏòËÙ¶ÈΪv2
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/201408241308518823143.jpg)
ÊúÖ±·½Ïò£º
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824130851897762.png)
Óɼ¸ºÎ¹Øϵ
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824130851617711.png)
£¨3£©Éè´øµçÁ£×Ó½ø´Å³¡Ê±µÄËٶȴóСΪv£¬Ôò
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/201408241308519601103.png)
ÓÉÁ£×ÓÔ˶¯µÄ¶Ô³ÆÐÔ¿ÉÖª£¬ÈëÉäËٶȷ½Ïò¹ý´Å³¡ÇøÓòÔ²ÐÄ£¬Ôò³öÉäËٶȷ´ÏòÑÓ³¤Ïß¹ý´Å³¡ÇøÓòÔ²ÐÄ£¬Á£×ÓÔڴų¡ÖеÄÔ˶¯¹ì¼£ÈçͼËùʾ
Ôò¹ì¼£°ë¾¶Îª
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/201408241308520071047.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824130852147745.png)
µÃ
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824130851648831.png)
![](http://thumb2018.1010pic.com/images/loading.gif)
Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿