16. As in Fig.8, one capacitor consists of two parallel metal plates (of separation \(d\) and area \(A\)) and a dielectric slab (dielectric constant \(\kappa\)) of thickness \(0.6d\). What is the capacitance of the capacitor?
(A) \(\frac{\kappa\epsilon_0 A}{d(0.4\kappa+0.6)}\)
(B) \(\frac{\kappa\epsilon_0 A}{d(0.4+0.6\kappa)}\)
(C) \(\frac{\kappa\epsilon_0 Ad}{0.4+0.6\kappa}\)
(D) \(\frac{\kappa\epsilon_0 Ad}{0.4\kappa+0.6}\)
(E) None

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這題在考什麼 本題考查電容器的串聯組合，...
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