A Hollow Conducting Spherical Shell Has Radii of 0

question 13

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 an excess charge of -500 nC. A point charge of +300 nC is present at the center. The surface charge density on the inner spherical surface is closest to

• A) zero.
• B) +4.0 × 10^-8 C/m².
• C) +6.0 × 10^-8 C/ m².
• D) -4.0 × 10^-8 C/ m².
• E) -6.0 × 10^-8 C/ m².

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Definitions:

Variable Input

An input whose quantity varies with production levels, affecting cost and output.

Marginal Cost

The added cost of producing one additional unit of a product or service.

Labor Costs

The total amount of money businesses have to pay to their employees for work done, including wages, salaries, and benefits.

Marginal Cost

The increase in cost resulting from the production of an extra good or service unit.