Question

2£®ÊµÑéÊÒµÄÒ»¸öµçѹ±íÓп̶ȵ«Î޿̶ÈÖµ£¬ÂúÆ«µçѹԼ3¡«5V£¬ÄÚ×èÔ¼30k¦¸£®ÏÖÒªÓÃÏÂÁÐÆ÷²Ä²â¶¨ÆäÂúÆ«µçѹÓëÄÚ×裮
µçÁ÷±íA₁£¨Á¿³Ì0¡«300¦ÌA£¬ÄÚ×èr₁=500¦¸£©£¬
µçÁ÷±íA₂£¨0¡«600¦ÌA£¬ÄÚ×èr₂=100¦¸£©£¬
¶¨Öµµç×裨R₀=25k¦¸£©£¬
»¬¶¯±ä×èÆ÷£¨×èÖµ0¡«10¦¸£¬¶î¶¨µçÁ÷1A£©£¬
µç×èÏ䣨×èÖµ0¡«9999¦¸£©£¬
µç³Ø£¨µç¶¯ÊÆ6V£¬ÄÚ×è²»¼Æ£©£¬¿ª¹Ø¡¢µ¼ÏßÈô¸É£®
£¨1£©ÏÖÉè¼Æ¿ÉÒ»¸ö²âÁ¿·½°¸£¬²¢°´´Ë·½°¸Á¬½ÓÁ˲¿·ÖÆ÷²ÄÈçͼËùʾ£¬ÇëÄãÍê³ÉÓÒͼµÄʵÎïÁ¬½Ó£»
£¨2£©ÊµÑéÖÐÈô²âµÃµçѹ±íÂúƫʱµçÁ÷±íA₁¡¢A₂µÄ¶ÁÊý·Ö±ðΪI₁¡¢I₂£¬µç×èÏäµÄ¶ÁÊýΪR£¬Ôò¿ÉÇóµÃµçѹ±íµÄÂúÆ«µçѹΪ${I}_{1}£¨R+{r}_{1}+25¡Á1{0}^{3}£©$£¨ÓÃÌâÖиø¶¨µÄ×Öĸ±íʾ£¬ÏÂͬ£©£¬µçѹ±íµÄÄÚ×èΪ$\frac{{I}_{1}£¨R+{r}_{1}+25¡Á1{0}^{3}£©}{{I}_{2}-{I}_{1}}$£®

Answer 1

·ÖÎö Ò»Ö»µçÁ÷±íÓëµçѹ±í´®Áª²âÁ¿ÆäµçÁ÷£¬Ò»Ö»µçÁ÷±íÓ붨ֵµç×è´®Áªµ±×÷µçѹ±í²âÁ¿¡°µçÁ÷±íÓëµçѹ±í´®Áª¡±µç·µÄµçѹֵ£¬Ó÷Öѹʽ½Ó·¨½Ó»¬¶¯±ä×èÆ÷£¬Á¬½ÓºÃµç·ºóÅ·Ä·¶¨ÂÉ¿ÉÇó³öÂúÆ«µçѹ£¬ÄÚ×裮

½â´ð ½â£º£¨1£©½«µçÁ÷±íA₁Ó붨ֵµç×è´®Áªµ±µçѹ±íÓ㬽«µçÁ÷±íA₂Óëµçѹ±í´®Áª²âµç×裬Òò»¬¶¯±ä×èÆ÷×èֵС£¬ÔòÓ÷Öѹʽ½Ó·¨£¬Á¬½Óµç·ͼÈçͼ

¾Ýµç·ͼ¿ÉÁ¬ÊµÎïͼÈçͼ£º


£¨2£©ÓÉÅ·Ä·¶¨ÂÉÖª£¬µçѹ±íµÄÂúÆ«µçѹΪ£ºU=${I}_{1}£¨R+{r}_{1}+25¡Á1{0}^{3}£©$
     µçѹ±íÄÚ×èΪ£ºR_V=${I}_{1}£¨R+{r}_{1}+25¡Á1{0}^{3}£©$
¹Ê´ð°¸Îª£º£¨1£©ÊµÎïͼÈçͼËùʾ£»£¨2£©${I}_{1}£¨R+{r}_{1}+25¡Á1{0}^{3}£©$£¬${I}_{1}£¨R+{r}_{1}+25¡Á1{0}^{3}£©$

µãÆÀ ±¾ÌâÒªÃ÷È·ÔÚûÓеçѹ±íµÄÇé¿öÏ¿ÉÒÔÓõçÁ÷±í´®Áªµç×èµ±×÷µçѹ±íʹÓã¬Á¬½ÓʵÎïͼҪÒÀ¾Ýµç·ͼ£¬»¬¶¯±ä×èÆ÷µÄÁ¬½ÓÒªÇø·Ö·Öѹʽ»¹ÊÇÏÞÁ÷ʽ£®