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Physics Unit21: Electromagnetic Induction & Faraday's Law (id: 13b4088f2)

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admin 发表于 2024-2-6 11:30:58 | 显示全部楼层 |阅读模式
本题目来源于试卷: Physics Unit21: Electromagnetic Induction & Faraday's Law,类别为 通用国际物理

[单选题]
An ideal transformer has 60 turns on its primary coil an1b;n fk9g5o2q y)r cv4 uvrx,ppw e/6md 30*y9ngbg(c2ua b uw*7 k0 turns on its secondary coil. If 120 V at 2.0 A is applied to the primary, what current is pres g*9b(ngua7kb wyu c*2ent in the secondary?

A. $0.40 \; A$
B. $2.0 \; A$
C. $4.0 \; A$
D. $10 \; A$


参考答案:  A


本题详细解析: 暂无

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