問題詳情
49. Three long wires parallel to the x axis carry currents as shown. If I = 20 A, what is the magnitude of the magnetic field at the origin?
(A)10μT
(B) 19μT
(C) 28μT
(D) 37μT
(E) 52μT
參考答案
答案：B
統計：A:0,B:1,C:0,D:0,E:0
難度：計算中
49. Three long wires parallel to the x axis carry currents as shown. If I = 20 A, what is the magnitude of the magnetic field at the origin?
答案：B
統計：A:0,B:1,C:0,D:0,E:0
難度：計算中