Question

14£®Ä³Í¬Ñ§ÀûÓÃÈçͼ£¨1£©Ëùʾµç·²â¶¨µçÔ´µÄµç¶¯ÊƺÍÄÚ×裮ʵÑéÖеç±íÄÚ×è¶ÔʵÑé½á¹ûÓ°ÏìºÜС£¬¾ù¿ÉÒÔºöÂÔ²»¼Æ£®±ÕºÏµç¼üSºó£¬±ä×èÆ÷µÄ»¬Æ¬PÓɱä×èÆ÷µÄÒ»¶Ë»¬µ½ÁíÒ»¶ËµÄ¹ý³Ì£¬Á½µçѹ±íʾÊýËæµçÁ÷±íʾÊý±ä»¯Çé¿ö·Ö±ðÈçͼ£¨2£©µÄU-IͼÏóÖеÄÖ±Ïßa¡¢bËùʾ£®

£¨1£©Óû­Ïß´ú±íµ¼Ïߣ¬½«Èçͼ£¨3£©ÊµÎïͼÖи÷Ôª¼þ°´Í¼£¨1£©Á¬½Ó³ÉʵÑéµç·
£¨2£©Í¨¹ý·ÖÎö¿ÉÖª£¬ÆäÖÐͼ£¨2£©ÖÐͼÏßa£¨Ìîa»òb£©V₁±íʾµçѹ±íʾÊýËæµçÁ÷±íAʾÊý±ä»¯¹Øϵ
£¨3£©¸ù¾ÝU-IͼÏóÖÐ×ø±êÖáËù±ê³öµÄÊý¾Ý£¬¿ÉÇó³öµçÔ´µÄµç¶¯ÊÆE=$\frac{{U}_{1}{I}_{2}-{U}_{2}{I}_{1}}{{I}_{2}-{I}_{1}}$£¬ÄÚ×èr=$\frac{{U}_{1}-{U}_{2}}{{I}_{2}-{I}_{1}}$£®£¨ÓÃͼÖиø³öµÄ×ø±êÖµ±íʾ£©

Answer 1

·ÖÎö £¨1£©¸ù¾Ýµç·ͼÁ¬½ÓʵÎïͼ¼´¿É£¬×¢ÒâÕý¸º¼«µÄ½Ó·¨¼°µ¼Ïß²»Äܽ»²æ£»
£¨3£©µçѹ±íV₁ʾÊýËæµçÁ÷±íAʾÊýµÄÔö¼Ó¶ø¼õС£»
£¨4£©¸ù¾Ý±ÕºÏµç·ŷķ¶¨ÂÉÁÐʽÇó½â£®

½â´ð ½â£º£¨1£©¸ù¾Ýµç·ͼÁ¬½ÓʵÎïͼ£¬ÈçͼËùʾ£º
£¨2£©µçѹ±íV₁ʾÊýËæµçÁ÷±íAʾÊýµÄÔö¼Ó¶ø¼õС£¬¹Ê¶ÔÓ¦µÄͼÏóÓ¦ÊÇͼÏßa£»
£¨3£©ÓÉE=U+IrÖª£º
E=U₁+I₁r£»
E=U₂+I₂r£»
ÁªÁ¢½âµÃ£ºE=$\frac{{U}_{1}{I}_{2}-{U}_{2}{I}_{1}}{{I}_{2}-{I}_{1}}$£»
$r=\frac{{U}_{1}-{U}_{2}}{{I}_{2}-{I}_{1}}$£»
¹Ê´ð°¸Îª£º£¨1£©ÈçͼÁ¬½Ó£»£¨2£©a£»£¨3£©$\frac{{U}_{1}{I}_{2}-{U}_{2}{I}_{1}}{{I}_{2}-{I}_{1}}$£»$\frac{{U}_{1}-{U}_{2}}{{I}_{2}-{I}_{1}}$

µãÆÀ ±¾Ìâ¹Ø¼üÊÇÃ÷ȷʵÑéÔ­ÀíºÍÎó²îÀ´Ô´£¬×îºó¸ù¾Ý±ÕºÏµç·ŷķ¶¨ÂÉÁÐʽÇó½âµçÔ´µÄµç¶¯ÊƺÍÄÚµç×裮עÒâ±ÕºÏµç·ŷķ¶¨ÂÉÔÚ±¾ÊµÑéÖеÄÕýÈ·Ó¦Óü´¿É£®