A Hollow Conducting Spherical Shell Has Radii of 0

question 14

Multiple Choice

A hollow conducting spherical shell has radii of 0.80 m and 1.20 m, as shown in the figure. The sphere carries a net excess charge of -500 nC. A point charge of +300 nC is present at the center. (k = 1/4πε₀ = 8.99 × 10⁹ N ∙ m²/C) The radial component of the electric field at a point that is 0.60 m from the center is closest to

• A) zero.
• B) +5000 N/C.
• C) +7500 N/C.
• D) -5000 N/C.
• E) -7500 N/C.

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Definitions:

Basic Emotions

Emotions that are unlearned and universal, that are reflected in the same facial expressions across cultures, and that emerge in children according to their biological timetable of development; fear, anger, disgust, surprise, happiness, and sadness are usually considered basic emotions.

Facial Expressions

Visible changes in the face that convey emotional states, intentions, or social communications.

Unlearned

Referring to behavior or knowledge that is innate or instinctual, not acquired or learned from experience or environment.

Basic Emotion

Fundamental emotions that are universally recognized, such as happiness, sadness, fear, and anger.