A Spherical Shell of Radius 9 $\sigma$ = 90 NC/m²

question 6

Multiple Choice

A spherical shell of radius 9.0 cm carries a uniform surface charge density $\sigma$ = 9.0 nC/m².The electric field at r = 4.0 cm is approximately

• A)0.13 kN/C
• B)1.0 kN/C
• C)0.32 kN/C
• D)0.75 kN/C
• E)zero

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Definitions:

Density-Independent Factor

An environmental factor that affects the size of a population but is not influenced by changes in population density. Compare with density-dependent factor.

Killing Frost

A severe frost event causing significant damage or death to vegetation, effectively ending the growing season for many plants.

Density-Independent Factor

A factor that affects the size of populations regardless of their density, such as weather or natural disasters.

Predation

A biological interaction where a predator organism kills and consumes another organism known as the prey.