試卷名稱:113年 - 113 臺灣綜合大學系統_學士班轉學生聯合招生考試:普通物理A#125298
年份:113年
科目:研究所、轉學考(插大)◆普通物理學
15. An alpha particle (q = +2e, m = 6.644×
kg) travels in a circular path of radius 9.00 cm in a uniform magnetic field with B = 1.20 T. Through what potential difference (volts) was it accelerated (from rest) to have the kinetic energy required for this path?
(A) 7.9×103,
(B) 5.3×104,
(C) 2.8×105,
(D) 6.7×106,
(E)3.1×107.