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题目
题目

ENGR-217:201,202,203,204,501,502,505,506,515,516,521,522,523,524,525,526,535,536,PHYS-217:203,204,501,502,503,531,532,533 Final Exam

多项选择题

A plane conducting geometry is placed in a spatially uniform magnetic field such that there is a non-zero magnetic flux through the geometry.  From the following statements select all that are true.

选项
A.An emf will be induced in the geometry if the magnetic field strength is varying with time.
B.An emf will be induced in the geometry if the geometry is rotated about an axis that is not perpendicular to the plane of the geometry.
C.Magnetic flux through the geometry will change if area of the geometry is changed.
D.An emf will be induced in the geometry if the geometry is moved along any straight line that is in the plane of the geometry. Assume that the geometry remains within the uniform magnetic field throughout its motion.
E.An emf will be induced in the geometry if the geometry is moved along any straight line that is parallel to the magnetic field.
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标准答案
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思路分析
The question asks which statements are true for a plane conducting geometry placed in a spatially uniform magnetic field with non-zero magnetic flux through it. We need to evaluate each option in turn based on Faraday's law and motional emf concepts. Option 1: 'An emf will be induced in the geometry if the magnetic field strength is varying with time.' If B changes with time, the magnetic flux Φ = B·A·cosθ through the loop changes in time. Faraday's law states that emf = -dΦ/dt, so a time-varying field indeed indu......Login to view full explanation

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