An Ac Source of Period T and Maximum Voltage V

question 33

Multiple Choice

An ac source of period T and maximum voltage V is connected to a single unknown ideal element that is either a resistor, and inductor, or a capacitor. At time t = 0 the voltage is zero. At time t = T/4 the current in the unknown element is equal to zero, and at time t = T/2 the current is I = -Imax, where Imax is the current amplitude. What is the unknown element?

• A) a resistor
• B) an inductor
• C) a capacitor
• D) an inductor or a capacitor

---

Definitions:

Break-even Sales

The amount of revenue required to cover total fixed and variable costs, resulting in zero profit or loss.

Fixed Costs

Expenses that do not change in proportion to the activity of a business, such as rent, salaries, and insurance premiums, remaining constant regardless of variations in business activity.

Variable Costs

Expenses that change in proportion to the activity of a business, such as materials or labor directly tied to production volume.

Break-even Sales

The point at which total sales equal total expenses, resulting in no profit or loss.