如图所示,在绝缘的水平面上等间距固定着三根相互平行的通电直导

如图所示,在绝缘的水平面上等间距固定着三根相互平行的通电直导线abc,各导线中的电流大小相同.其中ac导线中的电流方向垂直纸面向外,b导线电流方向垂直纸面向里,每根导线都受到另外两根导线对它的安培力作用.则关于每根导线所受安培力的合力,以下说法正确的是(  )

A.导线a所受合力方向水平向右

B.导线c所受合力方向水平向右

C.导线c所受合力方向水平向左

D.导线b所受合力为零

答案

BD

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