A Long Straight Wire Carrying a 4-A Current Is Placed

question 105

Multiple Choice

A long straight wire carrying a 4-A current is placed along the x-axis as shown in the figure. What is the magnitude of the magnetic field at a point P, located at y = 2 cm, due to the current in this wire? (μ₀ = 4π × 10^-7 T ∙ m/A)

• A)20 μT
• B)30 μT
• C)40 μT
• D)50 μT
• E)60 μT

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Definitions:

Standard Normal

A type of normal distribution with a mean of 0 and a standard deviation of 1.

Area

In mathematics, the extent of a two-dimensional surface within a boundary, measured in square units.

Probability Density

A function that describes the relative likelihood for a continuous random variable to occur at a specific point.

Normally Distributed

A statistical distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean.