A Circular Loop of Wire of Radius 10 Cm Carries

question 4

Multiple Choice

A circular loop of wire of radius 10 cm carries a current of 6.0 A. What is the magnitude of the magnetic field at the center of the loop? (μ0 = 4π × 10^-7 T ∙ m/A)

• A) 3.8 × 10^-5 T
• B) 3.8 × 10^-7 T
• C) 1.2 × 10^-5 T
• D) 1.2 × 10^-7 T
• E) 3.8 × 10^-8 T

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Definitions:

Nitrates

Inorganic compounds made of one nitrogen atom and three oxygen atoms that are commonly found in fertilizers and can be naturally present in water and soil.

Sedentary Lifestyle

A lifestyle characterized by a significant amount of sitting or inactivity, which can lead to health issues.

Intercalated Discs

The junctions between cells in cardiac muscle; contain gap junctions.

Myofibrils

Tiny threadlike structures in the cytoplasm of striated and cardiac muscle that are composed of myosin filaments and actin filaments; these filaments are responsible for muscle contraction; see myosin filaments and actin filaments.