By What Factor Is the Resistance of a Copper Wire

question 28

Multiple Choice

By what factor is the resistance of a copper wire changed when its temperature is increased from 30.0°C to 115°C? The temperature coefficient of resistivity for copper = 3.9 × 10−³ (°C) −¹.

• A)1.45
• B)1.12
• C)1.33
• D)0.669
• E)4.32

---

Definitions:

Implied Warranty

A legal assumption that a product will meet certain standards of quality and reliability without being explicitly stated.

Contract

A legally binding agreement between two or more parties that outlines obligations and rights.

Implied Warranty of Fitness

A legal guarantee that goods sold will meet the specific purpose for which the buyer is purchasing them, even if not explicitly stated.

Implied Warranty of Merchantability

A legal presumption that a product sold will meet the buyer's reasonable expectations of quality and functionality.