試卷名稱:114年 - [無官方正解]114 國立臺灣大學_轉學生招生考試試題:普通物理學(A)#128199
年份:114年
科目:研究所、轉學考(插大)◆普通物理學
8. What is the ratio of the ectrostatic force between an electron and proton separated by
m to to the gravitational force between them? Their separation is the average separation in a bydrogen atom. The electron has a mass of
kg and a charge of
. The gravional constant is G=
N
and the Coulomb constant is k = 8.99x109 N
.
(A)
(B)
(C) 2.3×10⁹
(D) 2.3×10¹⁹
(E) 2.3×10³⁹