A Flat Rectangular Loop of Wire Is Placed Between the Poles

question 46

Multiple Choice

A flat rectangular loop of wire is placed between the poles of a magnet,as shown in the figure.It has dimensions w = 0.60 m and L = 1.0 m,and carries a current I = 2.0 A in the direction shown.The magnetic field due to the magnet is uniform and of magnitude 0.80 T.The loop rotates in the magnetic field and at one point the plane of the loop is parallel to the field.At that instant,what is the magnitude of the torque acting on the wire due to the magnetic field?

• A)0.00 N ∙ m
• B)0.40 N ∙ m
• C)0.48 N ∙ m
• D)0.83 N ∙ m
• E)0.96 N ∙ m

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Definitions:

Π Network

An extended system of pi (π) bonds in a molecule, allowing for electron delocalization over more than two atoms.

Anti-aromatic

Anti-aromatic compounds are cyclic molecules that are destabilized by the presence of conjugated π electrons, failing to meet the criteria for aromatic stability.

O-bromostyrene

An organic compound composed of a bromine atom bonded to the benzene ring of styrene, used in various chemical synthesis processes.

Structure

A configuration or arrangement of elements in a material or object.