問題詳情

44. As shown in the figure below, a long straight wire carries a current i1 = 30 A and arectangular loop carries current i2 = 20 A. Take a = 1.0cm, b = 8.0 cm, and L = 30.0 cm. Which of thefollowing values is closet to the magnitude of the netforce generated by i1 in the loop? (μ0 = 4π x 10-7T•m/A)



(A)3.0x10-3 N
(B)2.0x10-1N
(C)8.0 N
(D)0.3 N
(E)0.05 N

參考答案

答案:A
難度:計算中-1
書單:沒有書單,新增