A Wire Has a Cross-Sectional Area of 0

question 29

Multiple Choice

A wire has a cross-sectional area of 0.10 mm². If there are 4.0 × 10²⁸ atoms per cubic meter in this wire, and if each atom contributes 2 free electrons, what is the drift velocity of the electrons when the current in the wire is 6.0 A? (e = 1.60 × 10^-19 C)

• A) 0.0047 m/s
• B) 0.0092 m/s
• C) 0.94 m/s
• D) 0.019 m/s

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Definitions:

Cognitive Processing

The act or method of acquiring, understanding, storing, and using information or knowledge.

Memory Clustering

The organization of memory into related groups during retrieval, which can enhance recall.

Cultural Differences

The distinct social behaviors, practices, norms, and values that differentiate groups of people or societies from one another.

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The process of receiving formal education in an institutional setting like schools.