本题目来源于试卷: Physics Unit20: Magnetism，类别为 通用国际物理
[单选题]
Two long parallel wires csihl9l; kwt wlt(l/:luyb7 /0arry equal currpwp;8a iq/4hh x: h1a*00jo s b3kvyiq ezkl,5ents. The magnitude of the force between the wires is F. The;0z: hpih w8k/ 134p*k lq h0yaxv oejiba,sq5 current in each wire is now doubled. What is the magnitude of the new force between the two wires?
A. $4 \; F$
B. $2 \; F$
C. $F/4$
D. $F/2$
参考答案: A
本题详细解析:
暂无
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