Electromagnetic Induction and Faraday’s Law and Lenz Law (id: 202ba8612)

本题目来源于试卷: Electromagnetic Induction and Faraday’s Law and Lenz Law，类别为 美国物理杯赛(Physics Bowl)

[单选题]
10.39: A strong bar magnet is held very close to the openi+ucy 8 r, .l*sd*aplming of a solenoid as ss-3j +l ;rxf 1fb 0yn-b3dbb7 qyr(vknhown in the diagram. A;bbs 10yffrv njnkd+r-lb 7 3bqx3-y(s the magnet is moved to the left toward the solenoid, a conventional current through the resistor shown is directed from A to B. What is the direction of the force on the bar magnet because of the induced current in the solenoid and which magnetic pole does the “??” in the diagram represent?

A. Force on magnet is To the right Pole of magnet is North
B. Force on magnet is To the left Pole of magnet is North
C. Force on magnet is To the right Pole of magnet is South
D. Force on magnet is To the left Pole of magnet is South
E. Force on magnet is There is no force Pole of magnet is Can not determine


参考答案:  A


本题详细解析: 暂无

微信扫一扫，分享更方便