A Hollow Conducting Spherical Shell Has Radii of 0

question 1334

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 1.50 m from the center is closest to

• A) +1200 N/C.
• B) +2000 N/C.
• C) -800 N/C.
• D) -1600 N/C.
• E) -2000 N/C.

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Definitions:

Marginal Cost

The increase in total cost that arises from producing one extra unit of a good or service.

Competitive Market

A market structure characterized by a large number of buyers and sellers, free entry and exit, and products that are close substitutes, leading to price competition and efficiency.

Utility Functions

Represent mathematical models that quantify an individual's preference for certain bundles of goods or services under conditions of scarcity.

Public Good

An item or resource that cannot be withheld from anyone and whose consumption by one individual does not diminish its accessibility to others, characterized by being both non-excludable and non-rival.