本题目来源于试卷: Physics Unit20: Magnetism，类别为 通用国际物理
[单选题]
The force on a current-carrying wire in a magnetd d9nh 0y7r (d pu6pqs31knp0hic field is the strong4ye,w o7a z/fsest when
A. the current is parallel to the field lines.
B. the current is at a $30^{\circ}$ angle with respect to the field lines.
C. the current is at a $60^{\circ}$ angle with respect to the field lines.
D. the current is perpendicular to the field lines.
参考答案: D
本题详细解析:
暂无
| 
