As Shown in the Figure,a Wire Is Bent into the Shape

question 70

Multiple Choice

As shown in the figure,a wire is bent into the shape of a tightly closed omega (Ω) ,with a circular loop of radius 4.0 cm and two long straight sections.The loop is in the xy-plane,with the center at the origin.The straight sections are parallel to the x-axis.The wire carries a 5.0-A current,as shown.What is the magnitude of the magnetic field at the center of the loop? (μ₀ = 4π × 10^-7 T ∙ m/A)

• A)25 µT
• B)40 µT
• C)54 µT
• D)80 µT
• E)104 µT

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Definitions:

Keynesian Economics

An economic theory proposed by John Maynard Keynes, suggesting that government intervention can stabilize economies by managing demand.

Supply-Side

An economic theory that emphasizes the role of production, investment, and innovation in driving economic growth, often advocating for reducing barriers for entrepreneurs and businesses.

Monetarist

An economist who holds the belief that variations in the money supply have major influences on national output in the short run and the price level over longer periods.

Rational Expectations

Rational Expectations is an economic theory suggesting that individuals make decisions based on their rational outlook, available information, and past experiences, accurately forecasting future economic conditions.