問題詳情
35. Two long parallel wires carry unequal currents in the same direction. The ratio of the currents is 3 to1. The magnitude of the magnetic field at a point in the plane of the wires and 10 cm from each wireis 4.0 AT. What is the larger of the two currents in A?
(A) 5.3
(B) 3.8
(C) 4.5
(D) 3.0
(E) 0.5.
參考答案
答案：D
難度：計算中-1
書單：沒有書單，新增