ÌâÄ¿ÄÚÈÝ
¡¾ÌâÄ¿¡¿Ä³Í¬Ñ§ÏëÓÃÒÔÏÂÆ÷²Ä×éװһֻŷķ±í£¬²¢±È½Ï¾«È·µØ²âÁ¿Ò»Ö»µç×èµÄ×èÖµ(Ô¼¼¸Ç§Å·)¡£
A.ÁéÃôµçÁ÷¼Æ£¬ÂúÆ«µçÁ÷1mA£¬ÄÚ×èΪ20¦¸
B.µçÁ÷±í£¬ÂúÆ«µçÁ÷Ϊ0.6A£¬ÄÚ×è5¦¸
C.µç¶¯ÊÆ15V¡¢ÄÚ×è5¦¸µÄÖ±Á÷µçÔ´
D.µç¶¯ÊÆ3V¡¢ÄÚ×è3¦¸µÄÖ±Á÷µçÔ´
E.×î´ó×èֵΪ5000¦¸µÄ»¬¶¯±ä×èÆ÷
F.×î´ó×èֵΪ100¦¸µÄ»¬¶¯±ä×èÆ÷
(1)ÒÔÉÏÆ÷²ÄӦѡ________(Ìî×Öĸ)£¬ÔÚÓÒÃæµÄ·½¿òÄÚ»³öËù×é×°µÄÅ·Ä·±íµÄÄÚ²¿½á¹¹µç·ͼ£¬²¢ÔÚͼÉϱê³öµçÁ÷¼ÆµÄÕý¡¢¸º½ÓÏßÖùºÍÅ·Ä·±íÕý¡¢¸º²å¿×µÄλÖÃ________¡£
(2)Å·Ä·±íµ÷Áãºó£¬»¬¶¯±ä×èÆ÷½ÓÈëµç·²¿·ÖµÄ×èֵΪ_________¦¸¡£
(3)ÈôÓôËÅ·Ä·±í²âÁ¿µç×裬·¢ÏÖÖ¸ÕëÖ¸ÔÚÂúÆ«µçÁ÷µÄËÄ·ÖÖ®Ò»¿Ì¶È´¦£¬Ôò´Ëµç×èµÄ²âÁ¿ÖµÎª_______¦¸¡£
(4)Èç¹ûÅ·Ä·±íÀïÃæµÄµç³ØʹÓÃÒ»¶Îʱ¼äºó£¬µ¼Öµç³ØÄÚ×èÔö´ó£¬µç¶¯ÊÆÂÔÓÐϽµ£¬µ«Å·Ä·±íÈÔÈ»ÄÜÕý³£µ÷Á㣬Õ⽫µ¼Ö²âÁ¿½á¹û________(Ñ¡Ìî¡°Æ«´ó¡±¡¢¡°²»±ä¡±¡¢¡°Æ«Ð¡¡±)¡£
¡¾´ð°¸¡¿ (1)ADE µç·ÈçͼËùʾ£»
(2) 2977 (3) 9000 (4)Æ«´ó
¡¾½âÎö¡¿£¨1£©ÄÚ²¿µçÔ´Ñ¡Ôñµç¶¯ÊÆ3V¡¢ÄÚ×è3¦¸µÄÖ±Á÷µçÔ´£»Ñ¡ÔñÂúÆ«µçÁ÷1mA£¬ÄÚ×èΪ20¦¸µÄÁéÃôµçÁ÷¼Æ£»´Ëʱµ±µçÁ÷¼ÆÂúƫʱ£¬½âµÃ£¬Ôò»¬¶¯±ä×èÆ÷Ñ¡ÔñE£»
£¨2£©µç·ÈçͼËùʾ£»
£¨3£©Å·Ä·±íµ÷Áãºó£¬»¬¶¯±ä×èÆ÷½ÓÈëµç·²¿·ÖµÄ×èֵΪ
£¨4£©ÈôÓôËÅ·Ä·±í²âÁ¿µç×裬·¢ÏÖÖ¸ÕëÖ¸ÔÚÂúÆ«µçÁ÷µÄËÄ·ÖÖ®Ò»¿Ì¶È´¦£¬Ôò£¬ÆäÖУ¬½âµÃRx=9000¦¸.
£¨5£©µ±Á½±í±Ê¶Ì½Ó£¨¼´Rx=0£©Ê±£¬µçÁ÷±íÓ¦µ÷ÖÁÂúÆ«µçÁ÷Ig£¬Éè´Ëʱŷķ±íµÄÄÚ×èΪRÄÚ£¬µçÁ÷£ºIg=£¬ÄÚ×èRÄÚ=£¬µ±Ö¸ÕëÖ¸Ôڿ̶ÈÅ̵ÄÕýÖÐÑëʱI= Ig/2£¬ £¬´úÈëÊý¾Ý¿ÉµÃRX=RÄÚ£»µ±µç³Øµç¶¯ÊƱäС¡¢ÄÚ×è±ä´óʱ£¬Å·Ä·µÃÖØе÷Á㣬ÓÉÓÚÂúÆ«µçÁ÷Ig²»±ä£¬Óɹ«Ê½Ig=£¬Å·Ä·±íÄÚ×èRÄڵõ÷С£¬´ý²âµç×èµÄ²âÁ¿ÖµÊÇͨ¹ýµçÁ÷±íµÄʾÊýÌåÏÖ³öÀ´µÄ£¬ÓÉ£¬¿ÉÖªµ±RÄÚ±äСʱ£¬I±äС£¬Ö¸Õë¸úÔÀ´µÄλÖÃÏà±ÈÆ«×óÁË£¬Å·Ä·±íµÄʾÊý±ä´óÁË£¬¼´µ¼Öµç×èµÄ²âÁ¿½á¹ûÆ«´ó.