The resistance of a wire is 10 ohm at 20°C. If its temperature coefficient is 0.005 /°C, its resistance at 100°C is
Q1. The resistance of a wire is 10 ohm at 20°C. If its temperature coefficient is 0.005 /°C, its resistance at 100°C is
Answer: 12 ohm
Explanation: Using R = R0 (1 + α(T - T0)), where R0 = 10, α = 0.005, T = 100, T0 = 20, we get R = 10 (1 + 0.005 * 80) = 12 ohm