2019 Shanghai Question 10 Single-choice Differentiating 2019_上海 Paper 10.如图所示电路,若将滑动变阻器滑片向上移动,则a、b环中感应电流的方向是( ) A. a环顺时针,b环顺时针B. a环顺时针,b环逆时针C. a环逆时针,b环顺时针D. a环逆时针,b环逆时针 Answer keyC ☆ SaveCan't do it, show the explanation查看原卷 →