A Flat Rectangular Loop of Wire Is Placed Between the Poles

question 60

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 perpendicular 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:

Exchange

The act of giving one thing and receiving another, especially of the same type or value, in return.

Interdependence

A condition where entities are mutually reliant on each other, such that the actions of one significantly affect the others in a social, economic, or ecological system.

Independence

refers to the state of being free from external control or influence, often used in the context of countries achieving sovereignty.