ä»å±ç´æµçµæºä¸²çµé»å¸¸ç¨äºçµå¨æºçèµ·å¨è¿ç¨ã
ä»å±ç´æµçµæºä¸²çµé»èµ·å¨æ¶éèè两个ææ ï¼1ãéå¶èµ·å¨çµæµï¼è½¬ç©ï¼ï¼2ã缩çèµ·å¨æ¶é´ã
ä»å±ç´æµçµå¨æºççµæ¢çµæµï¼Ia=ï¼U-Eaï¼/ï¼R+Raï¼ã
å¼ä¸ï¼Iaââçµæ¢çµæµï¼Aï¼ï¼
Uââçµå¨æºçµæ¢çµåï¼Vï¼ï¼
Eaââçµå¨æºçµæ¢æåºçµå¨å¿ï¼ä¸çµå¨æºè½¬éææ£æ¯ï¼Vï¼ï¼
Rââçµæ¢å路串æ¥çµé»ï¼Î©ï¼ï¼
Raââçµå¨æºçµæ¢çµé»ï¼Î©ï¼ã
èµ·å¨çµæµï¼è½¬ç©ï¼è¶å°ï¼èµ·å¨æ¶é´å°±è¶é¿ã
为äºè¾å¥½å°è§£å³æ¤çç¾ï¼å¾å¾éç¨å¤çº§èµ·å¨ã
ä¸å¾å°±æ¯4级起å¨çä¸ä¸ªè®¾è®¡ä¾åã
éççµå¨æºè½¬éçæé«ï¼éæ¶å°åå°çµå¨æºçµæ¢ä¸²æ¥ççµé»ï¼å¯å¨ä¸è¶ è¿å 许çµæµï¼è½¬ç©ï¼çåæä¸ï¼å å¿«èµ·å¨çè¿ç¨ãè¿å°±æ¯å¤çº§èµ·å¨ã
设计å¾å½çè¯ï¼ä¸²æ¥çµé»ç级æ°è¶å¤ï¼èµ·å¨è¿ç¨æ¶é´å°±è¶çï¼ä½èµ·å¨çµè·¯å设å¤å°±è¶å¤æã