本题目来源于试卷: Physics Unit20: Magnetism，类别为 通用国际物理
[单选题]
What is the magnetic moment of a rectangular loop nm) h(h8+vawsq ,jw3u)a wn e;of 120 turns -egb +pusv 02bhd ;y1 bmtjdc*bv l9)6that carries 6.0 A if its dimensions are 4.0 v;p)gu djc yl6+ bvhbm-*eb2 0t1 sdb9cm x 8.0 cm?
A. $0.23 \; A \cdot m^{2}$
B. $2.3 \; A \cdot m^{2}$
C. $23 \; A \cdot m^{2}$
D. $230 \; A \cdot m^{2}$
参考答案: B
本题详细解析:
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