問題詳情

54. The voltage across a parallel-plate capacitor is measured to be 92.5 V. When a dielectric is insertedbetween the plates, the voltage drops to 23.4 V. What is the dielectric constant of the insertedmaterial? Assume that the vacuum electric permittivity is


(A) 0.26
(B) 2.64
(C) 0.62
(D) 3.95
(E) 1.82

參考答案

答案：D
難度：計算中-1
書單：沒有書單，新增

用户評論

【面試倒楣鬼-22幸運上後西】評論

在電容與介電係數的部分, C = C0* ☆, ☆...