問題詳情
2.A center hollow disk (inner radius a, outer radius b, as shown in Fig. 2) with uniform surface charge density σ.
【題組】(a)Find the potential at a distance z above the center of the charge distributions. (15%)
參考答案
答案：D
難度：非常簡單0.991361
統計：A(2),B(1),C(1),D(459),E(0)