The Figure Shows Two Long, Parallel Current-Carrying Wires

question 19

Multiple Choice

The figure shows two long, parallel current-carrying wires. The wires carry equal currents I₁ = I₂ = 20 A in the directions indicated and are located a distance d = 0.5 m apart. Calculate the magnitude and direction of the magnetic field at the point P that is located an equal distance d from each wire. (μ0 = 4π × 10^-7 T ∙ m/A)

• A) 8 µT downward
• B) 8 µT upward
• C) 4 µT downward
• D) 4 µT upward
• E) 4 µT to the right

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Definitions:

30 Percent

A fraction or proportion representing thirty parts out of a hundred, often used in statistical or descriptive analyses.

70th Percentile

A value below which 70 percent of the data falls, often used in statistical analysis to measure performance.

Submental Lymph Nodes

Lymph nodes located beneath the chin (submental area), part of the body's immune system, they can become enlarged due to infections or other conditions.

Enlarged Node

An increase in size of a lymph node, often a sign of infection, inflammation, or malignancy.