問題詳情

49. An electron is located on the Earth’s magnetic equator at 1000 m altitude. In which direction will it be deflected when it is projected downward?
(A) Upward
(B) Downward
(C) East
(D)West

參考答案

答案：D
難度：困難0.285714
統計：A(1),B(3),C(1),D(2),E(0)