magnetic force (id: f9324da8e)

本题目来源于试卷: magnetic force，类别为 美国物理杯赛(Physics Bowl)

[单选题]
03.30: Two parallel f4:nb a/r zv+:ft)vof w5kp8k5yt1 /. hzoboagires are carrying different electric currents in the same direction as shown in the diagram. How does the magnitude of 81/t5ook 5 a.hzygbkp the force on A from B compare to the force on B from A?

A. $F_{B\:on\:A}$ =4 $F_{A\:on\:B}$
B. $F_{B\:on\:A}$ = $\frac{1}{4}$ $F_{A\:on\:B}$
C. $F_{B\:on\:A}$ = 2 $F_{A\:on\:B}$
D. $F_{B\:on\:A}$ = $\frac{1}{2}$ $F_{A\:on\:B}$
E. $F_{B\:on\:A}$ = $F_{A\:on\:B}$


参考答案:  E


本题详细解析: 暂无

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