本题目来源于试卷: Physics Unit20: Magnetism，类别为 通用国际物理
[单选题]
A circular loop of wire of*m r9o)j w6pcu92ldth4 qc1g xmle h5. whj:ly8t1ds6 radius 0.50 m is in a uniform magnetic field of 0.30 T. The:jl 5s8 ywt1dm.6ehlh current in the loop is 2.0 A. What is the magnetic torque when the plane of the loop is parallel 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: C
本题详细解析:
暂无
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