ÌâÄ¿ÄÚÈÝ
ͼ(1)°´Í¼
ͼ
(2)ÕæʵֵÓë²âµÃÖµÖ®²î³ýÒÔÕæʵֵ½Ð×ö²âÁ¿½á¹ûµÄÏà¶ÔÎó²î£¬¼´.ÊÔµ¼³öËüÓëµçÔ´µç¶¯ÊÆE¡¢µçÁ÷±íÁ¿³ÌI0¼°µçÁ÷±íÄÚ×èRAµÄ¹Øϵʽ;
(3)ÈôI0=10 mA£¬ÕæʵֵRAԼΪ30 ¦¸£¬ÒªÏëʹ²âÁ¿½á¹ûµÄÏà¶ÔÎó²î²»´óÓÚ5£¥£¬µçÔ´µç¶¯ÊÆ×îСӦΪ¶àÉÙ·ü?
½âÎö£º(1)Á¬ÏßÈçÏÂͼËùʾ
£¨2£©Óɲ½Öè¢ÙµÃ. ¢Ù
Óɲ½Öè¢ÚµÃ¡¤=. ¢Ú
½âµÃ=. ¢Û
(3)ÓÉ¢Ûʽ¿É½âµÃE=6V.
´ð°¸£º£¨1£©Á¬Ïß¼ûÉÏͼ £¨2£©RA £¨3£©6 V
Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿