NEET Physics Ohm's Law MCQ Question
If a wire has a resistance R at temperature T1, what will be the resistance at temperature T2 given that the temperature coefficient of resistance is a = 1.70 × 10^-4 °C^-1?
R[1 + a(T2 - T1)]
R[1 - a(T2 - T1)]
R[1 + a(T1 - T2)]
R[1 - a(T1 + T2)]
Correct Answer
Detailed Explanation
The resistance of a wire at a different temperature can be calculated using the formula R2 = R1[1 + a(T2 - T1)], where a is the temperature coefficient of resistance.
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