問題詳情
7. (5%) Ampere's Circuital Law is a powerful tool to determine the magnetic fluxdensity, but why do we still need the Biot-Savart Law?
(A)Current may not form a closed loop in a problem,
(B) Current loop may have irregular geometry,
(C) Point of interest may not show symmetry,
(D) All above,
(E) None mentioned.
參考答案
答案：[無官方正解]
難度：計算中-1
書單：沒有書單，新增