FIGURE 21-3 -Four Point Charges of Equal Magnitude but with Varying Signs

question 79

Multiple Choice

FIGURE 21-3
-Four point charges of equal magnitude but with varying signs are arranged on three of the corners and at the center of the square of side d as shown in Fig. 21-3. Which of the arrows shown represents the net force acting on the center charge?

• A)A
• B)B
• C)C
• D)D
• E)none of the above

---

Definitions:

Domestic Price

The price of a good or service within a country; this can be influenced by tariffs, taxes, and supply and demand.

Free Trade

An economic policy that allows imports and exports between countries with minimal or no tariff barriers.

Competition

The rivalry among businesses to attract customers, which can lead to improvements in products, services, and prices.

Efficiency

The optimal allocation of resources to maximize the production of goods and services.