24СʱÈÈÃŰæ¿éÅÅÐаñ    

Znn3bq.jpeg
ÉÇÍ·´óѧº£Ñó¿ÆÑ§½ÓÊܵ÷¼Á
²é¿´: 1563  |  »Ø¸´: 20
µ±Ç°Ö»ÏÔʾÂú×ãÖ¸¶¨Ìõ¼þµÄ»ØÌû£¬µã»÷ÕâÀï²é¿´±¾»°ÌâµÄËùÓлØÌû

Ãæ°üÀ¶µ÷

Ìú³æ (СÓÐÃûÆø)

[ÇóÖú] µç¶¯Á¦Ñ§½ô¼±ÇóÖú ÒÑÓÐ4È˲ÎÓë

»Ø¸´´ËÂ¥

» ²ÂÄãϲ»¶

ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

Ãæ°üÀ¶µ÷

Ìú³æ (СÓÐÃûÆø)

ÒýÓûØÌû:
4Â¥: Originally posted by sciencejoy at 2015-10-28 08:33:32
ÕâÀﲻì¶Ü¡£

¸ù¾ÝÅ·Ä·¶¨ÂÉ£¬ÄãµÃµ½µÄÓ¦¸ÃÊÇ

\nabla\cdot(\sigma \vec{E})=0

¶ÔÓÚ¾ùÔȵ¼Ì壬\sigmaΪ³£Á¿£¬ÓÐ\nabla\cdot \vec{E}=¡¢frac{\rho}{\epsilon_0}=0£¬¾ùÔȵ¼ÌåÄÚ²¿Ã»Óо»µçºÉ£¬\rho =0 ¡£ÕâÓë¸ß ...

Èç¹ûÊǵç×Óµ¼µçµÄϵͳ¸ÃÔõô°ìÄØ

·¢×ÔСľ³æAndroid¿Í»§¶Ë
7Â¥2015-10-28 09:00:40
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
²é¿´È«²¿ 21 ¸ö»Ø´ð

simonrac

½ð³æ (СÓÐÃûÆø)

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

¸Ðл²ÎÓ룬ӦÖúÖ¸Êý +1
ÄãÓõĹ«Ê½Ó¦¸ÃÊÇOhm's law£» Õâ¸ö¹«Ê½²¢²»ÊÇÒ»¸ö»ù±¾¹«Ê½£¬Èç¹ûÄãÓõÄÊÇ»ù±¾µÄMaxwell's equation µÄ»°¾Í²»»á³öÏÖÕâÖÖÇé¿ö£º





ÕâÑùËãµÄ»°ÊÇûÓÐì¶ÜµÄ£¡ÎÒ¶Ô¾­µäµç¶¯Á¦Ñ§Ò²²»Ê죬¶¼ÍüµÃ²î²»¶àÁË£¬½ö¹©²Î¿¼£¡
2Â¥2015-10-27 22:07:40
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

simonrac

½ð³æ (СÓÐÃûÆø)

ÒýÓûØÌû:
2Â¥: Originally posted by simonrac at 2015-10-27 22:07:40
ÄãÓõĹ«Ê½Ó¦¸ÃÊÇOhm's law£» Õâ¸ö¹«Ê½²¢²»ÊÇÒ»¸ö»ù±¾¹«Ê½£¬Èç¹ûÄãÓõÄÊÇ»ù±¾µÄMaxwell's equation µÄ»°¾Í²»»á³öÏÖÕâÖÖÇé¿ö£º

\Delta \times B - \frac{\partial E}{\partial t} = J

\Delta \dot E = \rho
...

ӦΪ ;
3Â¥2015-10-27 22:12:03
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

sciencejoy

гæ (ÖøÃûдÊÖ)

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï
¸Ðл²ÎÓ룬ӦÖúÖ¸Êý +1
Ãæ°üÀ¶µ÷: ½ð±Ò+15, ¡ï¡ï¡ï¡ï¡ï×î¼Ñ´ð°¸ 2015-10-29 08:29:32
ÕâÀﲻì¶Ü¡£

¸ù¾ÝÅ·Ä·¶¨ÂÉ£¬ÄãµÃµ½µÄÓ¦¸ÃÊÇ



¶ÔÓÚ¾ùÔȵ¼Ì壬Ϊ³£Á¿£¬ÓУ¬¾ùÔȵ¼ÌåÄÚ²¿Ã»Óо»µçºÉ£¬¡£ÕâÓë¸ß˹¶¨ÀíÊÇ·ûºÏµÄ.
4Â¥2015-10-28 08:33:32
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] Çóµ÷¼Á +3 ÎÒ°®¸ßÊý¸ßÊý°®Î 2026-04-12 3/150 2026-04-14 01:00 by Íõ¬Bè±
[¿¼ÑÐ] È˹¤ÖÇÄÜ320µ÷¼Á08¹¤À໹Óлú»áÂð +16 Õñ¡ªTZ 2026-04-10 17/850 2026-04-14 00:50 by Íõ¬Bè±
[¿¼ÑÐ] Çóµ÷¼Á +14 Ñ©·ê¶¬ 2026-04-10 14/700 2026-04-13 21:38 by gretl
[¿¼ÑÐ] »¯Ñ§070300 Çóµ÷¼Á +21 ¹þ¹þ¹þ^_^ 2026-04-12 21/1050 2026-04-13 21:36 by nxybio2007
[¿¼ÑÐ] 339Çóµ÷¼Á +4 hanwudada 2026-04-12 4/200 2026-04-13 12:03 by À¶ÔÆË¼Óê
[¿¼ÑÐ] 296Çóµ÷¼Á +14 Íô£¡£¿£¡ 2026-04-10 16/800 2026-04-12 10:48 by zhouyuwinner
[»ù½ðÉêÇë] ɽ¶«Ê¡»ù½ð2026 +5 jerry681 2026-04-08 6/300 2026-04-12 08:33 by kudofaye
[¿¼ÑÐ] Ò»Ö¾Ô¸Î÷±±¹¤Òµ´óѧ289 085602 +33 yangæÃ 2026-04-10 34/1700 2026-04-12 08:11 by Art1977
[¿¼ÑÐ] 280Çóµ÷¼Á +13 wzzzÍõ 2026-04-09 13/650 2026-04-12 00:31 by ÓÂÅʸ߷å0126
[¿¼ÑÐ] Ò»Ö¾Ô¸Ïôó0856£¬306Çóµ÷¼Á +15 Bblinging 2026-04-11 15/750 2026-04-11 22:53 by 314126402
[½Ìʦ֮¼Ò] ÇëÎʵØÀí¡¢Ò£¸Ð·½Ã棬¿ÉÒÔ×öÄÄЩºáÏòÏîÄ¿°¡£¬×ÝÏòÍê²»³É¿¼ºË°¡ +3 ½õÒÂÎÀº®Õ½ 2026-04-07 5/250 2026-04-11 20:51 by Ô¥½·
[¿¼ÑÐ] 070300»¯Ñ§279Çóµ÷¼Á +19 ¹þ¹þ¹þ^_^ 2026-04-08 20/1000 2026-04-11 20:43 by stoner78
[¿¼ÑÐ] 085410 273·Öµ÷¼Á +4 X1999 2026-04-09 4/200 2026-04-11 13:05 by pies112
[¿¼ÑÐ] 263ÄÜÔ´¶¯Á¦×¨Ë¶Çóµ÷¼Á +3 ¼Ó´óºÅ·¹ºÐ´ü 2026-04-10 3/150 2026-04-10 22:23 by 286640313
[¿¼ÑÐ] 314Çóµ÷¼Á +18 xhhdjdjsjks 2026-04-09 19/950 2026-04-10 18:53 by HPUCZ
[¿¼ÑÐ] 071000ÉúÎïѧµ÷¼ÁÇóÖú +17 zzzzwww 2026-04-09 20/1000 2026-04-10 15:55 by Çóµ÷¼Ázz
[¿¼ÑÐ] Ò»Ö¾Ô¸»¦9£¬326ÉúÎïѧÇóÏà¹Ø×¨Òµµ÷¼Á +4 Áõīī 2026-04-09 4/200 2026-04-10 12:07 by pengliang8036
[¿¼ÑÐ] 296Çóµ÷¼Á +6 Íô£¡£¿£¡ 2026-04-08 6/300 2026-04-10 11:02 by mattzhming
[¿¼ÑÐ] ±¾¿ÆÎ÷¹¤´ó 0856 324Çóµ÷¼Á +10 wysyjs25 2026-04-09 11/550 2026-04-10 08:37 by 5268321
[¿¼ÑÐ] 083200 ³õÊÔ305·Ö Çóµ÷¼Á Ôݲ»¿¼ÂÇ¿çרҵ +15 Claireyyyy 2026-04-09 15/750 2026-04-09 16:11 by zhuimr
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û