A Light Bulb with a Tungsten Filament Is Attached to a Source

question 69

Multiple Choice

A light bulb with a tungsten filament is attached to a source of variable voltage.As the voltage is increased on the bulb,

• A)the bulb's resistance decreases.
• B)the bulb's resistance increases.
• C)the current in the bulb decreases.
• D)the power dissipated remains constant.

---

Definitions:

Markup

The amount added to the cost price of goods to cover overhead and profit.

Desired Profit

The target profit a business aims to achieve within a specific period.

Total Fixed Manufacturing

The summation of all the costs that do not change with the level of production, including salaries, rent, and insurance.

Profit Margin

A component of the rate of return on investment, computed as the ratio of income from operations to sales.