Charge of Uniform Density (40 PC/m²) Is Distributed on a Spherical

question 66

Multiple Choice

Charge of uniform density (40 pC/m²) is distributed on a spherical surface (radius = 1.0 cm) , and a second concentric spherical surface (radius = 3.0 cm) carries a uniform charge density of 60 pC/m². What is the magnitude of the electric field at a point 4.0 cm from the center of the two surfaces?

• A) 3.8 N/C
• B) 4.1 N/C
• C) 3.5 N/C
• D) 3.2 N/C
• E) 0.28 N/C

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Definitions:

Reticular Fibers

Fine, thread-like fibers made of collagen and glycoproteins that form the supportive meshwork in various tissues such as the lymph nodes and spleen.

Actin Myofilaments

Thin protein filaments in muscle cells that, along with myosin, are responsible for muscle contraction.

Tropomyosin

Fibrous protein found as a component of the actin myofilament.

Fibrous Actin

Filamentous actin, part of the cytoskeleton in cells, involved in various types of cell movement and the maintenance of cell shape.