問題詳情
43. A uniform magnetic field is applied perpendicular to the plane of a 60-turn circular coil with a radiusof 6.0 cm and a resistance of 0.60 Q. If the magnetic field increases uniformly from 0.20 T to 1.8 Tin 0.20 s, what is the magnitude of the emf induced in the coil?
(A)7.2 V
(B)5.4 V
(C)9.2 V
(D)12 V
(E)16 V
參考答案
答案：B
難度：計算中-1
書單：沒有書單，新增