本题目来源于试卷: Physics Unit21: Electromagnetic Induction & Faraday's Law，类别为 国际高中通用物理
[单选题]
A horizontal metal bar that is 2.0 m long rotates at a cw7oe;qf.n y9fgq2h p6y i rt:.onstant anp;v *ibe4lro 3gular velocity of 2.0 rad/s about a vertical axis through one of its ends while in a constant magnetic fi ; *43lrvbpeoield of $5.0 \times 10^{-5} \; T$. If the magnetic field vector points straight down, what $emf$ is induced between the two ends of the bar?
A. $5.6 \times 10^{-3} \; V$
B. $3.0 \times 10^{-3} \; V$
C. $2.0 \times 10^{-4} \; V$
D. $1.6 \times 10^{-4} \; V$
参考答案: C
本题详细解析:
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