試卷名稱:112年 - 112 國立中興大學_學士後醫學系招生考試_學士後醫學系甲、乙組:物理#113978
年份:112年
科目:學士後西醫-物理
41. A metal bar sliding on parallel rails a length
apart from one another is given initial velocity vo to the right. The rails are connected by a resistor of resistance R at their left. If a constant magnetic field B is directed into the page, what is the magnitude of the force on the rod?
(A) 
(B)
(C)
(D) 
(E)