16. A circular ring with a diameter of 20 cm and a resistance of 0.01 Ω is subject to a uniform magnetic field of 2.0 T. Calculate the amount of chatge that will flow through the ring when it is rotated from a position perpendicular to the magnetic field to one that is parallel to the field.
(A) 3.14 C,
(B) 6,.28 C,
(C) 2.50 C,
(D) 4.62 C,
(E) 10 C.
答案：99
統計：A:0,B:0,C:0,D:0,E:0
難度：計算中