A Long Wire Is Known to Have a Radius Greater

question 31

Multiple Choice

A long wire is known to have a radius greater than 4.0 mm and to carry a current uniformly distributed over its cross section. If the magnitude of the magnetic field is 0.285 mT at a point 4.0 mm from the axis of the wire and 0.200 mT at a point 10 mm from the axis, what is the radius of the wire?

• A) 4.6 mm
• B) 7.1 mm
• C) 5.3 mm
• D) 12 mm
• E) 10 mm

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Definitions:

Puritan Marriages

Marriages within the Puritan community that emphasized mutual respect, piety, and companionship, guided by religious and moral principles of the 16th and 17th centuries.

Reciprocal Affection

Mutual feeling of love or fondness between two or more individuals or entities.

Divorce

The legal dissolution of a marriage by a court or other competent body, terminating the marital union and relieving the parties of marital obligations.

Mayflower Compact

Document signed in 1620 aboard the Mayflower before the Pilgrims landed at Plymouth; the document committed the group to majority-rule government.