ãã
æ´ç»´åå®çï¼å¯¹äºè¾ä¸ºå¤æççµè·¯ï¼å¨æ±æä¸ä¸ªå
件ï¼å¦ä¸ä¸ªçµé»ï¼ççµåæè
çµæµï¼ä¸è¬çåææ¹æ³è¾é¾åææ¶ï¼å¯ä»¥å°è¿ä¸ªå
件ä»çµè·¯ä¸æå¼ï¼è®¾æå¼å
件ç两端åå«ä¸ºèç¹aãbï¼åå¨å
件æå¼åçµè·¯ä¼åå¾è¾ä¸ºç®åï¼å¯ä»¥ä½¿ç¨ä»»ä½çµè·¯åæçæ¹æ³ï¼è¾ä¸ºå®¹æçæ±åºaãb两端ççµåUabï¼åUab=Uoc称为æ´ç»´åçæçµåãç¶ååå°çµè·¯å
é¨çµåæºçè·¯ãçµæµæºå¼è·¯ï¼æ±åºRab=Reqï¼ç§°ä¸ºçµè·¯å
é¨çæ´ç»´å
çæçµé»Reqãé£ä¹å
件ççµæµä¸ºï¼I=Uoc/ï¼Req+Rï¼ã
ããå®è´¨ä¸ï¼æ´ç»´åå®ççæ¬è´¨å°±æ¯å°å
件æå¼åï¼å©ä½ççµè·¯çæ为å«æå
é»rççµåæºUsï¼é£ä¹r=Reqï¼Us=Uocãä¾é¢å°±ä¸å¨è¿è´´åºäºï¼å¯ä»¥ç»ä½ æè¿æåçè¿ä¸äºç±»ä¼¼é¢ç®ï¼æç½åè¿æ¥è´´å¨è¿éã
https://zhidao.baidu.com/question/395483365181036805ï¼
https://zhidao.baidu.com/question/556845329917919092ãã
https://zhidao.baidu.com/question/2142389488605749908