Resistivity and Temperature: the Temperature Coefficient of Resistivity for Copper

question 35

Multiple Choice

Resistivity and temperature: The temperature coefficient of resistivity for copper is 0.0068 (C°) ^-1. If a copper wire has a resistance of 104 Ω at 20°C, what is its resistance 80°C?

• A) 192 Ω
• B) 42 Ω
• C) 71 Ω
• D) 161 Ω
• E) 146 Ω

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