本题目来源于试卷: Physics Unit20: Magnetism，类别为 国际高中通用物理
[单选题]
Two long parallel wi) o;1 k:xep16qj3u tnzh j8a)rws 3bqxres 5q ht ,zqon203tckk:ifzoa80 carry currents of 20 A and 5.0 A in opposite directions. The wires are separat 5nfkz0qikt0: 8 2tc, hozqao3ed by 0.20 m. At what point between the two wires are the contributions from the two wires the same?
A. 0.040 m from the 20 A wire
B. 0.080 m from the 20 A wire
C. 0.12 m from the 20 A wire
D. 0.16 m from the 20 A wire
参考答案: D
本题详细解析:
暂无
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