A Silver Wire Has a Cross Sectional Area a =

question 33

Multiple Choice

A silver wire has a cross sectional area A = 2mm². A total of of 9.4 × 10¹⁸ electrons pass through the wire in a time t = 3s. Silver has n_q = 5.8 × 10²⁸ electrons/m³. What is the drift velocity of these electrons?

• A)2.7 × 10^-5 m/s
• B)9.1 × 10^-5 m/s
• C)5.2 × 10^-5 m/s
• D)1.1 × 10^-5 m/s
• E)7.4 × 10^-5 m/s

---

Definitions:

Lower Cost

A situation where there is a reduction in the total expense required to produce goods or services.

Exchange Rate

The exchange rate determining the worth of one currency in a different currency.

Comparative Advantage

The ability of an entity to produce a good or service at a lower opportunity cost than others, leading to specialized production and trade benefits.

Specialization

The practice of focusing effort and resources on a specific task, area of knowledge, or market segment to increase efficiency and proficiency.