ADACACBDCCBBBDD  CD  AD  
          7                       5    
35  701*10    惯性   73.5  5  9*10     4.2  略  2008    60  2.7,滑动变阻器   右,62.4     缩小,倒立,放大           液,晶体,48   线圈匝数一定,吸引个数随电流增大而增大         1.2,10,0.24    10.8   错的     略        略     
      5   
4.2*10       1600,200,0.75    I1,0.8  I2,0.3   R1=10