As Shown Below,a Square Loop of Wire of Side a Moves

question 72

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 $\overrightarrow { \mathbf { v } }$ directed to the right.Judd says that the emf induced in the loop is zero.Roger claims that it has magnitude B $\ell v$ .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 \(\overrightarrow { \mathbf { v } } \neq 0\) .
• D)Roger,because the magnetic flux through the loop is not constant if \(\overrightarrow { \mathbf { v } } \neq 0\) .
• E)Roger,because the magnetic flux through the loop is \(\phi\)_B = 0.

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Definitions:

Catalyst

A substance that increases the rate of a chemical reaction without undergoing any permanent chemical change itself.

Molecular Level

Referring to the scale at which properties and behaviors of molecules, including interactions and reactions, can be studied and observed.

Alternate Pathway

A secondary or subsidiary route or method different from the main one, often used in biochemical reactions or processes.

Homogeneous Catalysts

Catalysts that exist in the same phase as the reactants in a chemical reaction, facilitating the reaction without being consumed.