ÌâÄ¿ÄÚÈÝ

£¨16·Ö£©t=0ʱ£¬´Å³¡ÔÚxOyƽÃæÄڵķֲ¼ÈçÌâ23ͼËùʾ.Æä´Å¸ÐӦǿ¶ÈµÄ´óС¾ùΪB0,·½Ïò´¹Ö±ÓÚxOyƽÃæ,ÏàÁڴų¡ÇøÓòµÄ´Å³¡·½ÏòÏà·´.ÿ¸öͬÏò´Å³¡ÇøÓòµÄ¿í¶È¾ùΪl0.Õû¸ö´Å³¡ÒÔËÙ¶ÈvÑØxÖáÕý·½ÏòÔÈËÙÔ˶¯.

£¨1£©ÈôÔڴų¡ËùÔÚÇø¼ä£¬xOyƽÃæÄÚ·ÅÖÃÒ»ÓÉaÔÑÏßȦ´®Áª¶ø³ÉµÄ¾ØÐε¼Ïß¿òabcd,Ïß¿òµÄbc±ßƽÐÐÓÚxÖá.bc=lB¡¢ab=L,×ܵç×èΪR,Ïß¿òʼÖÕ±£³Ö¾²Ö¹.Çó
¢ÙÏß¿òÖвúÉúµÄ×ܵ綯ÊÆ´óСºÍµ¼ÏßÖеĵçÁ÷´óС;
¢ÚÏß¿òËùÊÜ°²ÅàÁ¦µÄ´óСºÍ·½Ïò.
£¨2£©¸ÃÔ˶¯µÄ´Å³¡¿ÉÊÓΪÑØxÖá´«²¥µÄ²¨£¬Éè´¹Ö±ÓÚÖ½ÃæÏòÍâµÄ´Å³¡·½ÏòΪÕý£¬»­³öL=0ʱ´Å¸ÐӦǿ¶ÈµÄ²¨ÐÎͼ£¬²¢Ç󲨳¤ºÍƵÂÊf.
£¨1£©¢ÙI=
¢Ú£¬·½ÏòʼÖÕÑØxÖáÕý·½Ïò
£¨2£©£¬£¬²¨ÐÎͼÈçÏÂͼËùʾ¡£

£¨1£©¢ÙÇиî´Å¸ÐÏßµÄËÙ¶ÈΪv,ÈÎÒâʱ¿ÌÏß¿òÖе綯ÊÆ´óС
g=2nBvLv                                                                                  £¨1£©
µ¼ÏßÖеĵçÁ÷´óС
I=                                                    £¨2£©
¢ÚÏß¿òËùÊÜ°²ÅàÁ¦µÄ´óСºÍ·½Ïò

ÓÉ×óÊÖ¶¨ÔòÅжϣ¬Ïß¿òËùÊÜ°²ÅàÁ¦µÄ·½ÏòʼÖÕÑØxÖáÕý·½Ïò.
£¨2£©´Å¸ÐӦǿ¶ÈµÄ²¨³¤ºÍƵÂÊ·Ö±ðΪ                  £¨4£©
                                       £¨5£©
t=0ʱ´Å¸ÐӦǿ¶ÈµÄ²¨ÐÎͼÈç´ð23ͼ
Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿

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

¾«Ó¢¼Ò½ÌÍø