2015½ì¸ß¿¼ÎïÀí¶þÂÖ¸´Ï°×¨Ìâ²âÊÔ£º µçѧʵÑé Word°æº¬½âÎö - ͼÎÄ

¿É¹©Ê¹ÓÃµÄÆ÷²ÄÓÐ:

µçÁ÷±í:Á¿³Ì0.6A,ÄÚ×èÔ¼0.2¦¸; µçѹ±í:Á¿³Ì3V,ÄÚ×èÔ¼9k¦¸; »¬¶¯±ä×èÆ÷R1:×î´ó×èÖµ5¦¸; »¬¶¯±ä×èÆ÷R2:×î´ó×èÖµ20¦¸; ¶¨Öµµç×è:R0=3¦¸

µçÔ´:µç¶¯ÊÆ6V,ÄÚ×è¿É²»¼Æ;¿ª¹Ø¡¢µ¼ÏßÈô¸É¡£ »Ø´ðÏÂÁÐÎÊÌâ:

(1)ʵÑéÖ묶¯±ä×èÆ÷Ӧѡ (Ñ¡Ìî¡°R1¡±»ò¡°R2¡±),±ÕºÏ¿ª¹ØSǰӦ½«»¬Æ¬ÒÆÖÁ (Ñ¡Ìî¡°a¡±»ò¡°b¡±)¶Ë¡£

(2)ÔÚʵÎïͼ±ûÖÐ,ÒÑÕýÈ·Á¬½ÓÁ˲¿·Öµ¼Ïß,Çë¸ù¾Ýͼ¼×µç·Íê³ÉÊ£Óಿ·ÖµÄÁ¬½Ó¡£

(3)µ÷½Ú»¬¶¯±ä×èÆ÷,µ±µçÁ÷±íµÄ¶ÁÊýΪ0.50Aʱ,µçѹ±íʾÊýÈçͼÒÒ

µÚ 17 Ò³ ¹² 31 Ò³

Ëùʾ,¶ÁÊýΪ V¡£

(4)µ¼Ïßʵ¼Ê³¤¶ÈΪ m(±£Áô2λÓÐЧÊý×Ö)¡£ ¡¾½âÎö¡¿(1)±»²âµç×èµÄ×èֵԼΪRx???1.7?10?8?ls100??1.7?,

1.0?10?6¶øµç·ÖÐ×î´óµçÁ÷ΪIm=0.6A,ËùÒÔµç·ÖÐ×ܵç×èµÄ×îСֵΪ

R?E6???10?,Ôò»¬¶¯±ä×èÆ÷µÄ×èÖµ×îСΪR¶¯=R-Rx-R0=5.3¦¸,¹ÊIm0.6»¬¶¯±ä×èÆ÷ӦѡÔñR2;ÔÚµç·Ö묶¯±ä×èÆ÷ΪÏÞÁ÷½Ó·¨,±ÕºÏ¿ª¹ØÖ®Ç°,Æä×èÖµÓ¦ÖÃÓÚ×î´óÖµ´¦,¼´a´¦¡£ (2)µç·Á¬½ÓÈçͼËùʾ

(3)µçѹ±íµÄ¶ÁÊýΪ2.30V¡£ (4)±»²âµç×èµÄ²âÁ¿ÖµÎªRx?¼Ê³¤¶ÈΪl=94m¡£

´ð°¸:(1)R2 a (2)¼û½âÎö (3)2.30 (4)94

¡¾ÎóÇø¾¯Ê¾¡¿±¾ÌâÖ묶¯±ä×èÆ÷ÈÝÒ×ÎóÑ¡×èÖµ½ÏСµÄR1,Ô­ÒòÔÚÓÚûÓп¼Âǵç·Öеç±íµÄ°²È«ÎÊÌâ,Èç¹ûÑ¡ÔñR1,Ôòµç·ÖеÄ×îСµçÁ÷¾Í»á´óÓÚµçÁ÷±íµÄÁ¿³Ì,µç±í½«±»ÉÕ»µ¡£

9.(2014¡¤½­Ëո߿¼)ijͬѧͨ¹ýʵÑé²âÁ¿Ò»ÖֺϽðµÄµç×èÂÊ¡£ (1)ÓÃÂÝÐý²â΢Æ÷²âÁ¿ºÏ½ðË¿µÄÖ±¾¶¡£Îª·ÀÖ¹¶ÁÊýʱ²â΢Âݸ˷¢Éúת

µÚ 18 Ò³ ¹² 31 Ò³

Ul?R0,Rx??,´úÈëÊý¾Ý,½âµÃµ¼ÏßµÄʵIs¶¯,¶ÁÊýǰӦÏÈÐý½ôÈçͼËùʾµÄ²¿¼þ (Ñ¡Ìî¡°A¡±¡°B¡±¡°C¡±»ò¡°D¡±)¡£´ÓͼÖеÄʾÊý¿É¶Á³öºÏ½ðË¿µÄÖ±¾¶ mm¡£

(2)ÈçͼËùʾÊDzâÁ¿ºÏ½ðË¿µç×èµÄµç·,Ïà¹ØÆ÷²ÄµÄ¹æ¸ñÒÑÔÚͼÖбê³ö¡£ºÏÉÏ¿ª¹Ø,½«»¬¶¯±ä×èÆ÷µÄ»¬Æ¬ÒƵ½×î×ó¶ËµÄ¹ý³ÌÖÐ,·¢ÏÖµçѹ±íºÍµçÁ÷±íµÄÖ¸ÕëÖ»ÔÚͼʾλÖ÷¢ÉúºÜСµÄ±ä»¯¡£ÓÉ´Ë¿ÉÒÔÍÆ¶Ï:µç·ÖÐ (Ñ¡ÌîͼÖбíʾ½ÓÏßÖùµÄÊý×Ö)Ö®¼ä³öÏÖÁË (Ñ¡Ìî¡°¶Ì·¡±»ò¡°¶Ï·¡±)¡£

(3)Ôڵ緹ÊÕϱ»Åųýºó,µ÷½Ú»¬¶¯±ä×èÆ÷,¶Á³öµçѹ±íºÍµçÁ÷±íµÄʾÊý·Ö±ðΪ2.23VºÍ38mA,ÓÉ´Ë,¸ÃͬѧËã³ö½ÓÈëµç·²¿·ÖµÄºÏ½ðË¿µÄ×èֵΪ58.7¦¸¡£ÎªÁ˸ü׼ȷµØ²â³öºÏ½ðË¿µÄ×èÖµ,ÔÚ²»¸ü»»ÊµÑéÆ÷²ÄµÄÌõ¼þÏÂ,¶ÔʵÑéÓ¦×öÔõÑùµÄ¸Ä½ø?Çëд³öÁ½Ìõ½¨Òé¡£ ¡£

µÚ 19 Ò³ ¹² 31 Ò³

¡¾½âÎö¡¿(1)Ϊ·ÀÖ¹¶ÁÊýʱ²â΢Âݸ˷¢Éúת¶¯,¶ÁÊýǰӦÏÈÐý½ô²¿¼þB¡£Í¼ÖÐÂÝÐý²â΢Æ÷µÄ¶ÁÊýΪ0.410mm¡£

(2)ͼʾλÖ÷¢ÉúºÜСµÄ±ä»¯¼´µçѹ±í¶ÁÊý3V×óÓÒ,µçÁ÷±í¶ÁÊý¼¸ºõΪ0¡£7¡¢9¼ä¶Ï·»á³öÏÖÕâ¸öÇé¿ö¡£

(3)¸ù¾Ýµçѹ±íºÍµçÁ÷±íµÄÄÚ×è,¼ÆËãµç×èÖµ

R?RVRA?3000?0.3?30?,ÒòΪRx>30¦¸,ËùÒÔÒªÓõçÁ÷±íÄÚ½Ó¡£¹Ê

¸Ä½ø·½ÃæÎª¸ÄÓõçÁ÷±íÄÚ½Ó;²âÁ¿¶à×éµçÁ÷ºÍµçѹֵ,¼ÆËã³öµç×èµÄƽ¾ùÖµ¡£(»ò²âÁ¿¶à×éµçÁ÷ºÍµçѹֵ,ÓÃͼÏñ·¨Çóµç×è) ´ð°¸:(1)B 0.410 (2)7¡¢9 ¶Ï· (3)¼û½âÎö

¡¾ÎóÇø¾¯Ê¾¡¿ÂÝÐý²â΢Æ÷Ò»°ã¿¼²é¶ÁÊý,µ«ÊǵÚ(1)ÎÊ¿¼²éÁËÐýÅ¥µÄ¹¦ÄÜ,ºÜ¶àͬѧ¿ÉÄÜÑ¡ÔñDµ¼Ö´íÎó;ÁíÍâ¹À¶Á²¿·Ö©µôÖÂ´í¡£µÚ(2)ÎÊÖеÄÎÊÌâÊÇÅжÏ8¡¢9¶Ï·Ö´í,µÚ(3)ÎÊÖ÷ÒªÊDz»Äܸù¾ÝÊý¾Ý»Ø´ðÍêÕû¡£

10.(2014¡¤ÖØÇì¸ß¿¼)ijÕÕÃ÷µç·³öÏÖ¹ÊÕÏ,Æäµç·Èçͼ¼×Ëùʾ,¸Ãµç·ÓÃ±ê³ÆÖµ12VµÄÐîµç³ØÎªµçÔ´,µ¼Ïß¼°Æä½Ó´¥ÍêºÃ¡£Î¬ÐÞÈËԱʹÓÃÒѵ÷ºÃµÄ¶àÓñíÖ±Á÷50Vµ²¼ì²â¹ÊÕÏ¡£Ëû½«ºÚ±í±Ê½ÓÔÚcµã,Óúì±í±Ê·Ö±ð̽²âµç·µÄa¡¢bµã¡£

¢Ù¶Ï¿ª¿ª¹Ø,ºì±í±Ê½Óaµãʱ¶àÓñíָʾÈçͼÒÒËùʾ,¶ÁÊýΪ V,˵Ã÷

µÚ 20 Ò³ ¹² 31 Ò³

ÁªÏµ¿Í·þ£º779662525#qq.com(#Ìæ»»Îª@)