The resistance of platinum wire at 0^{\circ} {\C} is 2 Ω and 6.8 Ω at 80^{\circ} {\C}. The temperature coefficient of resistance of the wire is [NEET 2023]

Correct Answer is : 3×10−2∘C−1

3 \times 10^{-3}{ }^{\circ} {\C}^{-1}

3 \times 10^{-2}{ }^{\circ} {\C}^{-1}

3 \times 10^{-4}{ }^{\circ} {\C}^{-1}

Class 12 NEET Physics Current Electricity Questions Part 2

Question : 19 of 48

Marks: +1, -0

The resistance of platinum wire at 0∘C is 2Ω and 6.8Ω at 80∘C. The temperature coefficient of resistance of the wire is

[NEET 2023]

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