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 wi tyh **/4fvkcsrk f 3w,ch *ptt7lr8y6ke on a square frame with 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 8.0 s, find the average value of thekhl6 kyt*rpfw83 ct 7, 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
| 
