The Figure Shows a Cross Section of Three Parallel Wires

question 19

Multiple Choice

The figure shows a cross section of three parallel wires each carrying a current of 5.0 A out of the paper. If the distance R = 6.0 mm, what is the magnitude of the magnetic force on a 2.0-m length of any one of the wires?

• A) 2.5 mN
• B) 3.3 mN
• C) 2.2 mN
• D) 2.9 mN
• E) 1.7 mN

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Definitions:

Volcanic Domes

Rounded, mound-shaped landforms created by slow-moving lava that solidifies near the Earth's surface.

Calderas

Volcanic features characterized by their large, basin-like depressions formed following the evacuation of a magma chamber in a major eruption.

Pyroclastic Flows

Fast-moving currents of hot gas and volcanic materials (such as ash) that flow down the sides of a volcano during an explosive eruption.

Eruption Column

A towering cloud of ash, gas, and volcanic debris that rises above a volcano during an explosive eruption.