【简答题】两个电荷量分别为Q和4Q的负电荷a、b,在真空中相距为l,如果引入另一点电荷c,正好能使这三个电荷都处于静止状态,试确定电荷c的位置、电性及它的电荷量.
【简答题】现有数值如下:0.15,-1.37,-0.05,-1.8,-0.41,-0.83,0.59,-0.4,-0.99,1.07,0.72,1.73,1.38,-2.15,0.01,1.78,0.73,-0.01,-0.68,0.18,-1.75,1.1,0.88,0.83,-1.11,-0.75,0.83,0.07,0.06,1.6,1.84,-1.0,-1.09,0.79,-1.45,-0.3,-0...