本题目来源于试卷: Electromagnetic Induction and Faraday’s Law and Lenz Law，类别为 美国物理杯赛(Physics Bowl)
[单选题]
17.35: A metal bar is moving to the leftejm2y4eznc2+i-w y p2vw;9k n across n-g:b;gkjguy 7cu. y)a set of frictionless conducting rails as seen in the figure. Throughout the region between the rails, there is a uniform magnetic field directed into the plane of the page. The resistors labeled X and Y are identical. Which one of the following choices correctly indicates the direction of the conventional current in the resistors and the relation between the magnitude of the currents through each res j-ny.u cybu 7;gggk:)istor at the instant shown?
A. Current through X is Up the plane of the page Current through Y is Up the plane of the page Relation between Currents is $I_X\:>I_Y$
B. Current through X is Up the plane of the page Current through Y is Up the plane of the page Relation between Currents is $I_X\:=I_Y$
C. Current through X is Up the plane of the page Current through Y is Down the plane of the page Relation between Currents is $I_X\:>I_Y$
D. Current through X is Down the plane of the page Current through Y is Down the plane of the page Relation between Currents is $I_X\:=I_Y$
E. Current through X is Down the plane of the page Current through Y is Down the plane of the page Relation between Currents is $I_X\:>I_Y$
参考答案: B
本题详细解析:
暂无
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