本题目来源于试卷: Physics Unit20: Magnetism，类别为 通用国际物理
[单选题]
A wire carries a current of 10 A i9kp*jm-:k2brwdx :h l z7w,pmn -l)s ,s qbf.mt.nf 8jywdiv4 wfsk/3;a direction of $30^{\circ}$ with respect to the direction of a 0.30-T magnetic field. Find the magnitude of the magnetic force on a 0.50-m length of the wire.
A. $0.75 \; N$
B. $1.5 \; N$
C. $3.0 \; N$
D. $6.0 \; N$
参考答案: A
本题详细解析:
暂无
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