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]
A coil is wrapped withes-izb( ;rni; 200 turns of wire on a square 7g 4miybks08lframe with sides 18 cm. A uniform magnetic fib8m7iyg40 slk eld is applied perpendicular to the plane of the coil. If the field changes uniformly from 0.50 T to 0 in 8.0 s, find the average value of the induced $emf$.
A. $2.1 \; mV$
B. $4.1 \; mV$
C. $0.21 \; V$
D. $0.41 \; V$
参考答案: D
本题详细解析:
暂无
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