The Figure Shown Depicts the Cross Section of a Current

question 25

Multiple Choice

The figure shown depicts the cross section of a current carrying ring of wire having a radius of 4 cm.A 1-A current flows in the ring in the direction indicated in the drawing.The ring is free to rotate,clockwise or counterclockwise,about an axis normal to the page which passes through its center.The ring is connected to a spring with a spring constant of 100 N/m as shown.The spring is fixed to a wall at the other end.When the ring is in the vertical position,the spring is at its natural length.One may assume that the length of the spring is long enough such that any extension or compression follows Hooke's law.Determine the magnitude of the change in length of the spring when a magnetic field B = 2 T is applied along the vertical axis.

• A)1.25 mm
• B)5.0 mm
• C)2.5 mm
• D)6.26 mm

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Definitions:

Asch Procedure

A research method used in social psychology to study conformity to group pressure by analyzing how individuals yield to or defy a majority group's opinion.

Conformity

The act of matching attitudes, beliefs, and behaviors to group norms, policies, or social expectations.

Chameleon Effect

The unconscious mimicry of the postures, mannerisms, facial expressions, and other behaviors of one's interaction partners, enhancing social connection.

Social Loafing

A phenomenon in group settings where individuals reduce their effort because they believe others will pick up the slack.