A Flat Rectangular Loop of Wire Is Placed Between the Poles

question 31

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 $\vec { B }$ 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 perpendicular to the field.At that instant,what is the magnitude of the torque exerted on the wire by 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

---

Definitions:

Commitment

A pledge or promise to engage in an action or support a cause or entity.

Mutual Trust

A reciprocal belief between parties that each will act in the interest of the other, essential for collaboration and teamwork.

Role Ambiguity

The lack of clarity about expected behavior, responsibilities, and tasks in a job role, leading to confusion and stress.

Discretionary Action

Actions that rely on individual judgment and choice in the execution of a duty or the handling of a situation.