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]
A coil is wrapped with 200 turnsvxk 1tfg;f-cs to)n93 of wire on a square frame withb)k;d1mx9fi mnjq mrj.x f65* sides 18 cm. A uniform magnetic field is applied perpendicular to the plane of the coil. If the field changes uniformly from 0.50 T to 0 in 8xrq ki mxm6dm9*bf1nj ) 5.;jf.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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