The Figure Shows a Cross Section of Three Parallel Wires

question 41

Multiple Choice

The figure shows a cross section of three parallel wires each carrying a current of 15 A.The currents in wires A and C are out of the paper,while that in wire B is into the paper.If the distance R = 5.0 mm,what is the magnitude of the force on a 4.0-m length of wire C?

• A)90 mN
• B)54 mN
• C)30 mN
• D)18 mN
• E)36 mN

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Definitions:

Colored Women

An outdated term historically used to refer to women of non-white or mixed racial heritage, now considered derogatory and no longer in appropriate use.

Talented Tenth

A term popularized by W.E.B. Du Bois referring to the supposed ten percent of African Americans who could lead the race to greater advancements through higher education and intellectual achievement.

Niagara Movement

An early 20th-century African-American civil rights group advocating for political, civil, and social rights, precursor to the NAACP.

Educated Blacks

Refers to African Americans who have attained formal education, particularly during times when access to education for Blacks was severely restricted.