研究所、轉學考(插大)◆普通物理學題庫下載題庫

14. The figure shows three graphs of how a potential varies along an x axis. V₁ = -200 V, x₁ = 0.20 m； V₂ = 400 V, x₂ = 0.40 m； V₃ = 300 V, x₃ = 0.30 m. Rank the situations according to the magnitude of the electric field along the axis.

(A) 1=2=3,
(B) 2＞3＞1,
(C) 3＞1＞2,
(D) 3＞1=2,
(E) 1＞2＞3.