A wire has a resistance of 5 Ω at 20 °C. If the temperature is increased to 100 °C, its resistance increases to 7 Ω. What is the temperature coefficient of resistance?
Lagos State University PHY102 2025 past question
- 0.005 /°C
- 0.01 /°C
- 0.02 /°C
- 0.05 /°C
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