A Flashlight Bulb Operating at a Voltage of 3 V

question 28

Multiple Choice

A flashlight bulb operating at a voltage of 3 V has a resistance of 10 Ω.How many electrons pass through the bulb filament per second (e = 1.6 × 10−¹⁹ C) ?

• A) 0.5 × 10¹⁶
• B) 4.8 × 10²¹
• C) 5.3 × 10¹⁷
• D) 1.9 × 10¹⁸
• E) ​2.1 × 10²⁰

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Definitions:

LIFO Inventory

An inventory valuation method that assumes the last items placed in inventory are the first sold.

Market Value

The ongoing rate for purchasing or selling a good or service in the marketplace.

Inventory Valuation Method

A system used by businesses to assess the cost of their inventory, affecting financial statements and taxation.

Gross Profit

The financial metric calculated by subtracting the cost of goods sold from the net sales, representing the profit from sales before deducting operating expenses.