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]
Doubling the strength ,ov.i5 r .gjlhh4e 4 w/l7hknkof the magnet (j4f kpe4 4-qkq 65)rthzi zr7cf*jvmic field through a loop of wire produces what kind o)mtf*5cv q644 zfirr zkj-( e qpk7hj4f change on the induced $emf$, assuming all other factors remain constant?
A. The induced $emf$ is 4 times as much.
B. The induced $emf$ is twice as much.
C. The induced $emf$ is half as much.
D. There is no change in the induced $emf$.
参考答案: B
本题详细解析:
暂无
| 
