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 turns of wire on a square frame with sidesvu)maeb,mog ty p0 ejo0 -vxqnfm:o2c/2( 5x, 18 cm. h.38og ) gn 9ntup(rhu A uniform magnetic field is applied perpendicular to the plane of the coil.uhnp)gnro8 9.ut(g3 h 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:
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