Positive SSL
    14.素養(4)
1 A線圈在0.2秒內由2A增加至7A時,附近之B線圈感應5V電勢,則AB兩線圈之互感MAB
A 0.2H
B 0.4H
C 1H
D 5H

eB = MAB ∆IA∆t

5 = MAB 7-20.2

MAB = 5/25 = 0.2H