A Hollow Conducting Spherical Shell Has Radii of 0

question 20

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:

Cartel Agreements

An arrangement between competing firms to control prices or exclude entry of a new competitor in a market, often to maximize their own profits by limiting supply.

Price-fixing

An illegal agreement among competitors to set prices at a certain level rather than allowing them to fluctuate naturally with market forces.

Clayton Act

A U.S. antitrust law, enacted in 1914, aimed at promoting fair competition and preventing monopolies.

Illegal Cooperative Agreements

Illegal cooperative agreements refer to unlawful arrangements between competing businesses to fix prices, divide markets, or engage in other anti-competitive practices.