A +40 μC-Point Charge and a -4

question 36

Multiple Choice

A +4.0 μC-point charge and a -4.0-μC point charge are placed as shown in the figure. What is the potential difference, V_A - V_B, between points A and B? (k = 1/4πε0 = 8.99 × 10⁹ N ∙ m²/C²)

• A) 48 V
• B) 96 V
• C) 0.00 V
• D) 96 kV
• E) 48 kV

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Definitions:

Fixed Expenses

Costs that do not change with the level of output or sales in the short term, such as rent, salaries, and insurance.

Break-even Point

The juncture where the sum of all costs matches the total income, leading to neither a profit nor a loss.

Contribution Margin Ratio

A financial ratio that measures the proportion of revenue remaining after variable costs have been deducted, indicating how much contributes to covering fixed costs and generating profit.

Fixed Monthly Expenses

Regularly occurring costs that do not vary in amount from one month to the next, such as rent or loan payments.