Magnetism Magnetism (id: 78e0ad552)

本题目来源于试卷: Magnetism Magnetism，类别为 IB物理学

[填空题]
A long horizontal wire 8e,dvbot85cc yj:)n jeizc0uu56x .ccarries a current of 48 A. A second wire, made of 2.5-mm-d iu)jex0u.:zc nj6 y5ciameter copper wire and parallel to the first, is kept in suspension magnetically 15 cm below (Fig. Below).
(a) Determine the magnitude and direction of the current in the lower wire.    A the current is to the  ----待选择----leftright 
(b) Is the lower wire in stable equilibrium?  ----待选择----not in stable equilibrium in stable equilibrium 
(c) Repeat parts (a) and (b) if the second wire is suspended 15 cm above the first due to the latter’s field.

参考答案:
空格1: 6700±2%  空格2: right  空格3: not in stable equilibrium 


本题详细解析:

微信扫一扫，分享更方便