A Wire in the Shape of an "M" Lies in the Plane

question 127

Multiple Choice

A wire in the shape of an "M" lies in the plane of the paper.It carries a current of 2.0 A,flowing from A to E.It is placed in a uniform 0.85-T $\vec { B }$ field in the same plane,directed as shown on the right side of the figure.The figure indicates the dimensions of the wire.Note that AB is parallel to DE and to the baseline from which the $\vec { B }$ field direction is measured.What are the magnitude and direction of the net magnetic force exerted on this wire?

• A)0.40 N perpendicular out of the page
• B)0.10 N perpendicular into the page
• C)0.40 N perpendicular into the page
• D)0.10 N perpendicular out of the page
• E)0.20 N perpendicular out of the page

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Definitions:

Anterior Air Sacs

Air-filled structures part of the avian respiratory system, located near the front of the bird's body, involved in the storage and movement of air through the lungs.

Spiracles

Openings on the body of some animals, such as insects and some fishes, for breathing.

Fick's Law

A principle in physics and chemistry describing the rate of diffusion of a substance across a space, influenced by the concentration gradient, surface area, and other factors.

Partial Pressure

The pressure exerted by a single type of gas in a mixture of gases, often used in calculations involving gas laws and respiration.