本题目来源于试卷: Physics Unit20: Magnetism，类别为 国际高中通用物理
[单选题]
A circular loop of wi 4-g1rh z2wxirre of radiuvoe9t 1y 3-.2rvfbco fs 0.50 m is in a uniform magnetic field of 0.30 T. The current in the loop is 2.0 A. What is the mag vfo-or.93ef2cvyt 1 bnetic torque when the plane of the loop is perpendicular to the magnetic field?
A. zero
B. $0.41 \; m \cdot N$
C. $0.47 \; m \cdot N$
D. $0.52 \; m \cdot N$
参考答案: A
本题详细解析:
暂无
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