Àë×ÓÀ©Êø×°ÖÃÓÉÀë×Ó¼ÓËÙÆ÷¡¢Æ«×ªµç³¡ºÍƫת´Å³¡×é³É¡£Æ«×ªµç³¡ÓɼÓÁ˵çѹµÄÏà¾àΪd=0.1mµÄÁ½¿éˮƽƽÐзÅÖõĵ¼Ìå°åÐγɣ¬Èçͼ¼×Ëùʾ¡£´óÁ¿´ø¸ºµçµÄÏàͬÀë×Ó£¨ÆäÖØÁ¦²»¼Æ£©Óɾ²Ö¹¿ªÊ¼£¬¾­¼ÓËٵ糡¼ÓËÙºó£¬Á¬Ðø²»¶ÏµØÑØƽÐÐÓÚµ¼Ìå°åµÄ·½Ïò´ÓÁ½°åÕýÖмäÉäÈëƫתµç³¡¡£µ±Æ«×ªµç³¡Á½°å²»´øµçʱ£¬Àë×Óͨ¹ýÁ½°åÖ®¼äµÄʱ¼äΪ3¡Á10-3 s£¬µ±ÔÚÁ½°å¼ä¼ÓÈçͼÒÒËùʾµÄµçѹʱ£¬ËùÓÐÀë×Ó¾ùÄÜ´ÓÁ½°å¼äͨ¹ý£¬È»ºó½øÈëˮƽ¿í¶ÈÓÐÏÞ¡¢ÊúÖ±¿í¶È×ã¹»´ó¡¢´Å¸ÐӦǿ¶ÈΪB=1TµÄÔÈÇ¿´Å³¡ÖУ¬×îºóͨ¹ýÔÈÇ¿´Å³¡´òÔÚÊúÖ±·ÅÖõÄÓ«¹âÆÁÉÏ¡£Çó£º
£¨1£©Àë×ÓÔÚ¸Õ´©³öƫתµç³¡Á½°åÖ®¼äʱµÄ×î´ó²àÏòλÒÆÓë×îС²àÏòλÒÆÖ®±ÈΪ¶àÉÙ£¿
£¨2£©ÒªÊ¹²àÏòλÒÆ×î´óµÄÀë×ÓÄÜ´¹Ö±´òÔÚÓ«¹âÆÁÉÏ£¬Æ«×ªµç³¡µÄˮƽ¿í¶ÈΪLΪ¶à´ó£¿
½â£º£¨1£©Éèt0=1¡Á10-3 s£¬ÓÉÌâÒâ¿ÉÖª£¬´Ó0¡¢3t0¡¢6t0¡­¡­µÈʱ¿Ì½øÈëƫתµç³¡µÄÀë×Ó²àÏòλÒÆ×î´ó£¬ÔÚÕâÖÖÇé¿öÏ£¬Àë×ӵIJàÏòλÒÆΪ    
        
´Ó2t0¡¢5t0¡¢8t0¡­¡­µÈʱ¿Ì½øÈëƫתµç³¡µÄÀë×Ó²àÏòλÒÆ×îС£¬ÔÚÕâÖÖÇé¿öÏ£¬Àë×ӵIJàÏòλÒÆΪ

ËùÒÔ×î´ó²àÏòλÒƺÍ×îС²àÏòλÒÆÖ®±ÈΪ
£¨2£©ÉèÀë×Ó´Óƫתµç³¡ÖÐÉä³öʱµÄÆ«Ïò½ÇΪ¦È£¬ÓÉÓÚÀë×ÓÒª´¹Ö±´òÔÚÓ«¹âÆÁÉÏ£¬ËùÒÔÀë×ÓÔڴų¡ÖÐÔ˶¯°ë¾¶Ó¦Îª£ºL=Rsin¦È
ÉèÀë×Ó´Óƫתµç³¡ÖгöÀ´Ê±µÄËÙ¶ÈΪvt£¬´¹Ö±Æ«×ª¼«°åµÄËÙ¶ÈΪvy£¬ÔòÀë×Ó´Óƫתµç³¡ÖгöÀ´Ê±µÄÆ«Ïò½ÇΪ£º
ʽÖР
Àë×ÓÔڴų¡ÖÐÓÉÅ£¶ÙµÚ¶þ¶¨ÂÉ¿ÉÖª£º
µÃ£º
×ÛÉÏËùÊö¿ÉµÃ£º
Á·Ï°²áϵÁдð°¸
Ïà¹ØÏ°Ìâ

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

Èçͼ¼×Ëùʾ£¬ÎªÀë×ÓÀ©Êø×°ÖõÄʾÒâͼ£¬¸Ã×°ÖÃÓɼÓËٵ糡¡¢Æ«×ªµç³¡ºÍƫת´Å³¡×é ³É¡£ÆäÖÐƫתµç³¡µÄÁ½¼«°åÓÉÏà¾àΪd =0.12 m£¬°å³¤ÎªL1 =0.12mÁ½¿éˮƽƽÐзÅÖõĵ¼ Ìå°å×é³É¡£Ò»Èº´ø¸ºµçµÄÏàͬÀë×Ó£¨ÖÊÁ¿Îªm =6.4 x 10-27Icg;µçºÉÁ¿Îªg =3.2 x 10-19C; ÆäÖØÁ¦²»¼Æ£©Óɾ²Ö¹¿ªÊ¼£¬¾­¼ÓËٵ糡¼ÓËÙºó£¬Á¬Ðø²»¶ÏµØÑØƽÐÐÓÚµ¼Ìå°åµÄ·½Ïò´ÓÁ½°å ÕýÖÐÑëÉäÈëƫתµç³¡¡£µ±Æ«×ªµç³¡µÄÁ½¼«°å²»¼Óµçѹʱ£¬Àë×Óͨ¹ýÁ½°åÖ®¼äµÄʱ¼äΪ 3 x 10-7s;µ±Æ«×ªµç³¡µÄÁ½¼«°å¼ä¼ÓÈçͼÒÒËùʾµÄµçѹʱ£¬ËùÓÐÀë×Ó¾ùÄÜ´ÓÁ½°å¼äͨ¹ý£¬ È»ºó½øÈëˮƽ¿í¶ÈL2 =0. 16m¡¢ÊúÖ±³¤¶È×ã¹»´ó¡¢·½Ïò´¹Ö±Ö½ÃæÏòÀïµÄÔÈÇ¿´Å³¡ÖУ¬´Å³¡ Óұ߽çΪÊúÖ±·ÅÖõÄÓ«¹âÆÁ(²»¿¼ÂÇÀë×Ó¼äÏ໥×÷Óã©¡£Çó£º

(1)    ¼ÓËٵ糡µÄµçѹU0;

(2)    Àë×ÓÉä³öƫתµç³¡µÄ×î´ó²àÒÆÁ¿ym

(3)    µ±´Å¸ÐӦǿ¶È´óСȡºÎֵʱ£¬Àë×ÓÄÜ´òµ½Ó«¹âÆÁµÄλÖÃ×îµÍ£¬²¢Çó³ö×îµÍλÖÃÀëÖÐÐÄ µãOµÄ¾àÀë¡£

 

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º2012½ì¶Èɽ¶«Ê¡ÑĮ̀ÊиßÈýÕï¶ÏÐÔ¿¼ÊÔÎïÀí¾í ÌâÐÍ£º¼ÆËãÌâ

Àë×ÓÀ©Êø×°ÖÃÓÉÀë×Ó¼ÓËÙÆ÷¡¢Æ«×ªµç³¡ºÍƫת´Å³¡×é³É£®Æ«×ªµç³¡ÓɼÓÁ˵çѹµÄÏà¾àΪd=0.1mµÄÁ½¿éˮƽƽÐзÅÖõĵ¼Ìå°åÐγɣ¬Èçͼ¼×Ëùʾ£®´óÁ¿´ø¸ºµçµÄÏàͬÀë×Ó£¨ÆäÖØÁ¦²»¼Æ£©Óɾ²Ö¹¿ªÊ¼£¬¾­¼ÓËٵ糡¼ÓËÙºó£¬Á¬Ðø²»¶ÏµØÑØƽÐÐÓÚµ¼Ìå°åµÄ·½Ïò´ÓÁ½°åÕýÖмäÉäÈëƫתµç³¡£®µ±Æ«×ªµç³¡Á½°å²»´øµçʱ£¬Àë×Óͨ¹ýÁ½°åÖ®¼äµÄʱ¼äΪ3¡Á10-3s£¬µ±ÔÚÁ½°å¼ä¼ÓÈçͼÒÒËùʾµÄµçѹʱ£¬ËùÓÐÀë×Ó¾ùÄÜ´ÓÁ½°å¼äͨ¹ý£¬È»ºó½øÈëˮƽ¿í¶ÈÓÐÏÞ¡¢ÊúÖ±¿í¶È×ã¹»´ó¡¢´Å¸ÐӦǿ¶ÈΪB=1TµÄÔÈÇ¿´Å³¡ÖУ¬×îºóͨ¹ýÔÈÇ¿´Å³¡´òÔÚÊúÖ±·ÅÖõÄÓ«¹âÆÁÉÏ£®Çó£º

£¨1£©Àë×ÓÔÚ¸Õ´©³öƫתµç³¡Á½°åÖ®¼äʱµÄ×î´ó²àÏòλÒÆÓë×îС²àÏòλÒÆÖ®±ÈΪ¶àÉÙ£¿

£¨2£©ÒªÊ¹²àÏòλÒÆ×î´óµÄÀë×ÓÄÜ´¹Ö±´òÔÚÓ«¹âÆÁÉÏ£¬Æ«×ªµç³¡µÄˮƽ¿í¶ÈΪLΪ¶à´ó£¿

 

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

Àë×ÓÀ©Êø×°ÖÃÓÉÀë×Ó¼ÓËÙÆ÷¡¢Æ«×ªµç³¡ºÍƫת´Å³¡×é³É£®Æ«×ªµç³¡ÓɼÓÁ˵çѹµÄÏà¾àΪd=0.1mµÄÁ½¿éˮƽƽÐзÅÖõĵ¼Ìå°åÐγɣ¬Èçͼ¼×Ëùʾ£®´óÁ¿´ø¸ºµçµÄÏàͬÀë×Ó£¨ÆäÖØÁ¦²»¼Æ£©Óɾ²Ö¹¿ªÊ¼£¬¾­¼ÓËٵ糡¼ÓËÙºó£¬Á¬Ðø²»¶ÏµØÑØƽÐÐÓÚµ¼Ìå°åµÄ·½Ïò´ÓÁ½°åÕýÖмäÉäÈëƫתµç³¡£®µ±Æ«×ªµç³¡Á½°å²»´øµçʱ£¬Àë×Óͨ¹ýÁ½°åÖ®¼äµÄʱ¼äΪ3¡Á10-3s£¬µ±ÔÚÁ½°å¼ä¼ÓÈçͼÒÒËùʾµÄµçѹʱ£¬ËùÓÐÀë×Ó¾ùÄÜ´ÓÁ½°å¼äͨ¹ý£¬È»ºó½øÈëˮƽ¿í¶ÈÓÐÏÞ¡¢ÊúÖ±¿í¶È×ã¹»´ó¡¢´Å¸ÐӦǿ¶ÈΪB=1TµÄÔÈÇ¿´Å³¡ÖУ¬×îºóͨ¹ýÔÈÇ¿´Å³¡´òÔÚÊúÖ±·ÅÖõÄÓ«¹âÆÁÉÏ£®Çó£º

£¨1£©Àë×ÓÔÚ¸Õ´©³öƫתµç³¡Á½°åÖ®¼äʱµÄ×î´ó²àÏòλÒÆÓë×îС²àÏòλÒÆÖ®±ÈΪ¶àÉÙ£¿

£¨2£©ÒªÊ¹²àÏòλÒÆ×î´óµÄÀë×ÓÄÜ´¹Ö±´òÔÚÓ«¹âÆÁÉÏ£¬Æ«×ªµç³¡µÄˮƽ¿í¶ÈΪLΪ¶à´ó£¿

 

²é¿´´ð°¸ºÍ½âÎö>>

ͬ²½Á·Ï°²á´ð°¸