Spheres of Charge: a Non-Conducting Sphere of Radius R =

question 28

Multiple Choice

Spheres of charge: A non-conducting sphere of radius R = 7.0 cm carries a charge Q = 4.0 mC distributed uniformly throughout its volume. At what distance, measured from the center of the sphere, does the electric field reach a value equal to half its maximum value?

• A) 3.5 cm only
• B) 4.9 cm only
• C) 3.5 cm and 9.9 cm
• D) 3.5 cm and 4.9 cm
• E) 9.9 cm only

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Definitions:

Myopia

A common vision condition, also known as nearsightedness, where close objects appear clearly, but distant ones do not.

Presbyopia

A common age-related condition where the eye's lens loses the ability to focus on close objects, resulting in difficulty reading or seeing details at close range.

Weber Test

A screening test for hearing that uses a tuning fork to determine the nature and severity of hearing loss.

Rinne Test

A hearing test using a tuning fork to compare air conduction and bone conduction of sound in the ear, used to diagnose types of hearing loss.