A Segment of Wire of Total Length 3

question 58

Multiple Choice

A segment of wire of total length 3.0 m carries a 15-A current and is formed into a semicircle. Determine the magnitude of the magnetic field at the center of the circle along which the wire is placed.

• A) 1.6 μT
• B) 4.9 μT
• C) 1.0 μT
• D) 9.8 μT
• E) 15 μT

---

Definitions:

Quota

A restriction on the number of units of a particular product that can be imported into a country.

Embargo

A prohibition on trade in a particular product.

Ad Valorem Tariff

A type of tariff based on a percentage of the value of the imported goods, rather than on quantity or weight.