本题目来源于试卷: Physics Unit21: Electromagnetic Induction & Faraday's Law，类别为 国际高中通用物理
[单选题]
The primary of a transformer has 100 turns and its second/qn3mv0 lt,z k*7j.4lrfspvs ary has 200 turns. Iib.hy9h9.mfleudx, m*u(ix9kv ui 6 .f the power input to the primary is 100 W, we can expect the power output of the secondarv yeu.m(x..ihu*kl f,9h d bim6ix99uy to be (neglecting frictional losses)
A. 50 W.
B. 100 W.
C. 200 W.
D. none of the given answers
参考答案: B
本题详细解析:
暂无
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