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 ssjw,go2 * 8 hgz-*dayiv y18oof radius 0.50 m is in a unifor e+)5nwnb(gml(5 00bd d xxtiwyo5*kbm magnetic field of 0.30 T. The currentnwtkdle5 b5)bx 0gd (m0y (i*xo+ bwn5 in the loop is 2.0 A. What is the magnetic 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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