本题目来源于试卷: Physics Unit21: Electromagnetic Induction & Faraday's Law，类别为 通用国际物理
[单选题]
A horizontal metal bar rotates at a constant angular veloci: to6h g/ac) bg8nmqg+ty+rfy z o* +q6el,tsi8u $\omega$ about a vertical axis through one of its ends while in a constant magnetic field B that is directed down. The $emf$ induced between the two ends of the bar is
A. constant and proportional to the product $B\omega$.
B. constant and proportional to the product $B \omega^2$.
C. constant and proportional to the product $B^2 \omega^2$.
D. none of the given answers
参考答案: A
本题详细解析:
暂无
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