Drift Velocity: Building Codes Usually Limit the Current Carried by a 1.6-Mm

question 22

Multiple Choice

Drift velocity: Building codes usually limit the current carried by a 1.6-mm diameter copper wire to 15 A. Many household circuits are wired with this size wire. What is the drift velocity of the electrons in this case?. Assume one conduction electron per atom in copper. The atomic weight of copper is 63.3 g/mol and its density is 8900 kg/m³. Avogadro's number is 6.022 × 10²³ molecules/mol and e = 1.60 × 10^-19 C.

• A) 5.51 × 10^-4 m/s
• B) 4.56 × 10^-4 m/s
• C) 1.65 × 10^-3 m/s
• D) 4.44 × 10^-2 m/s
• E) 4.89 × 10^-5 m/s

---

Definitions:

Value

The financial, tangible, or estimated value of a property, product, or service.

Intrinsic Value

The actual, inherent worth of an asset, independent of its market value, often calculated using fundamental analysis.

Call

An option contract that gives the holder the right, but not the obligation, to buy a security at a specified price within a specified time period.

Value

The worth of an asset or service, determined by factors such as market demand, utility, and costs of production.