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 placed 3tt;4dy ebtk6 side-by-side on a horizontal table carry7d0 44mpbl z -yon(qyq identical size currents in opposite directions. The wi (qbylzno0pm-4d 74yq re on your right carries current toward you, and the wire on your left carries current away from you. From your point of view, the magnetic field at the point exactly midway between the two wires
A. points up.
B. points down.
C. points toward you.
D. is zero.
参考答案: B
本题详细解析:
暂无
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