問題詳情

40. Two conducting spheres, of radii R1 = 0.2 m and R2 = 0.1 m, carry charges q1 = 6 x10-8 C, q2 = -2 x10-8 C and are placed at a distance>> R1, R2 from cach other. They are then connected by aconducting wire. What are their final charges (q1', q2')?
(A) 1.85✖10-8 C, 2.15 ✖10-8C
(B) 2.67✖10-8 C, 1.33✖10-8C
(C) 2.33 ✖10-8 C, 1.67 ✖10-8C
(D) 2.15✖10-8 C, 1.85✖10-8C
(E) 1.33 ✖10-8 C, 2.67 ✖10-8C

參考答案

答案:B
難度:計算中-1
書單:沒有書單,新增