As Shown Below, a Square Loop of Wire of Side

question 26

Multiple Choice

As shown below, a square loop of wire of side a moves through a uniform magnetic field of magnitude B perpendicular to the page at constant velocity directed to the right. Judd says that the emf induced in the loop is zero. Roger claims that it has magnitude B . Which one, if either, is correct, and why?

• A) Judd, because the magnetic flux through the loop is constant.
• B) Roger, because the magnetic flux through the loop is constant.
• C) Judd, because the magnetic flux through the loop is not constant if .
• D) Roger, because the magnetic flux through the loop is not constant if .
• E) Roger, because the magnetic flux through the loop is Φ_B = 0.

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Definitions:

IR Spectroscopy

A technique used in chemistry to identify molecular structures by measuring the absorption of different frequencies of infrared light, providing information about functional groups present.

IR Absorption

A phenomenon where molecules absorb infrared radiation at specific wavelengths, corresponding to vibrations of their chemical bonds; used in spectroscopy for molecule identification.

Characteristic Stretch

The specific frequency at which molecular bonds stretch during IR absorption, indicative of certain functional groups.

Characteristic Stretch

Specific vibrations in molecules, observed in infrared spectroscopy, that are associated with particular functional groups and bonds within the molecule.