Two Point Charges of Values +2

question 21

Multiple Choice

Two point charges of values +2.0 and +5.5 μC,respectively,are separated by 0.50 m.What is the potential energy of this 2-charge system? (k_e = 8.99 × 10⁹ N⋅m²/C²)

• A)+0.50 J
• B)−0.20 J
• C)+0.20 J
• D)−0.41 J
• E)​+0.41 J

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Definitions:

Demand Curve

A graphical representation of the relationship between the price of a good and the quantity of the good that consumers are willing and able to purchase.

MR Curve

In economics, the marginal revenue curve shows how marginal revenue varies as quantity produced changes, critical for profit maximization decisions in firms.

Marginal Cost

The expenditure involved in creating one more unit of a product or service.

Demand Curve

A diagram displaying the link between the value of an item and the quantity of that item that shoppers are eager and financially capable of purchasing at various cost points.