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 :s4 u,tt v8/h1 2zqqj2tsb5 ubcw(razcarry equal currents. Th6bsq :739dz6axhvhx wloaa .d34/ rgf e magnitude of the force between the wires is F. The current in each wire is now doubled. Wx 6 grdbzawq6x.f9l3 /a7avh ohs34d: hat 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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