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:

Provocative Items

Materials or stimuli intended to evoke reactions or responses in subjects or audiences.

Narcissist

An individual with an excessive interest in or admiration of themselves, often disregarding the feelings of others.

Extravert

An individual who is outgoing and draws energy from being around other people, as opposed to solitude.

Evolutionary Approach

A perspective that explains psychological traits as adaptations shaped by natural selection.